Radiant energy controlled regulation of the current supply for the load device

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Title

Date

20140191667

LIGHT SOURCE CONTROLLER - A light source control system using output feedback, comparing the current output to a previous output level of a light source and modulating a control signal to maintain the light source output at a predetermined percentage of its maximum.

07-10-2014

20090309500

Brightness Controlled Light Source - A method and system is provided for automatic brightness control of a light source. The system includes at least one light sensor that operates in a different range of the light spectrum than the light spectrum generated by the controlled light source.

12-17-2009

20110193486

METHOD FOR OPERATING A LIGHT-EMITTING DIODE ARRANGEMENT, AND CIRCUIT ARRANGEMENT - A circuit arrangement for operating an LED arrangement, wherein a controller transmits a current intensity value for a respective LED to a driver and the latter feeds the LED with current in a time sequence containing a check pulse, and wherein a measuring device is configured to measure the light emitted by the light-emitting diode on account of the check pulse, wherein the controller is configured to use only measurement values which represent the light of check pulses for the stipulation of current intensity values, and wherein the driver defines a main factor, which is dependent on at least one of the temperature of the LED and on the voltage dropped across said LED, wherein the driver is configured to multiply the current intensity value by the main factor and this product defines the current intensities of all the current pulses in the time sequence apart from the check pulse.

08-11-2011

20140265881

STATE CHANGE DEVICES FOR SWITCHED ELECTRICAL RECEPTACLES - A state change device may be electrically connected to a switched receptacle, or to both the switched and unswitched receptacles, of an outlet. The state change device may generate a change of state signal when power is applied to, or removed from, the switched receptacle. The state change device may wirelessly communicate the signal. The state change device may include a load control circuit that may be configured to control the amount of power delivered to an electrical load that is electrically connected to the state change device. The state change device may receive commands directed to the load control circuit. The state change device may be deployed in a load control system and may operate as a control entity, such that the state change device may issue commands to one or more load control devices, responsive to the application or removal of power at the switched receptacle.

09-18-2014

20120119661

LIGHT EMITTING DIODE OPERATING DEVICE AND METHOD - A light emitting diode (LED) operating device comprises an LED module and an operating unit. The LED module, including light emitting diodes to emit incoherent radiation, is connected in releasable manner to the operating unit by a connector. The operating unit incorporates a power supply and a controller to provide the LEDs with electrical power. Sensors in the operating unit and the LED module record operational parameters of the operating device, which are used together with characteristic parameters stored in an electronic memory device, to record and control the emission characteristic of the LED module.

05-17-2012

20160088710

METHOD AND APPARATUS FOR CONTROLLING SMART LIGHT - A method for controlling a smart light includes acquiring status information of a current scene, judging whether the current scene complies with a preset scene condition according to the status information, inquiring a pre-stored light effect configuration library according to the preset scene condition to determine a light effect parameter corresponding to the preset scene condition if the current scene complies with the preset scene condition, generating a light control instruction corresponding to the preset scene condition and including the light effect parameter, and sending the light control instruction to the smart light.

03-24-2016

20140265883

WALL SWITCH WITH NIGHTLIGHT - An electrical device such as a switch includes a light source and light sensor to detect ambient light and actuate the light source when the ambient light is below a predetermined level. The light switch has a pivotally mounted rocker actuator with a first outer face on one side of the pivot axis at a first end of the housing and a second outer face on a second side of the pivot axis at a second end of the housing. The light source is positioned in the housing to illuminate a light transmitting area of the first outer face of the actuator. The light sensor and a light sensor lens for directing ambient light to the light sensor are positioned at or near the second outer face at the second end of the housing.

Light emitting display with light mixing within a film - In one embodiment, a light emitting device comprises an array of legs extending from a body of film with the bounding edges of the legs stacked, a first light source emitting light of a first color and a second light source emitting light of a second color into the stacked bounding edges where the light emitting region defined within the body is configured to extract light of a third color. In another embodiment, a light emitting device comprises three light sources positioned to direct light into a stacked array of bounding edges. In one embodiment, a method of generating light of adjustable color exiting a surface of a film is disclosed.

09-22-2011

20110227486

WHITE LED LIGHT SOURCE MODULE - A white LED light source module can have a white LED light source that includes a blue LED element and a fluorescent material in combination, and a member that can prevent the color of the fluorescent material itself from being directly observed when the light source module does not function as a light source. The white LED light source module can have a photosensor to detect external light. In a standby mode of the white LED light source module, the blue LED element can be supplied with a small driving current corresponding to the brightness of the external light detected by the photosensor, so that the white LED light source can be lit with the luminance substantially equal to the external light.

09-22-2011

20120187850

Nightlight Driving Device - A nightlight driving device is disclosed, comprising a power input module, a current limiting module, a triac, a photo-sensing module, a filter module and a light emitting diode (LED), wherein the filter module inputs a stable current into the LED and the power input module provides the power required for entire operations; therefore, when the photo-sensing module is located in a daytime environment, the photo-sensing module causes the triac not to be driven to conduct and the LED can not illuminate; on the other hand, in case the photo-sensing module is in a nighttime environment, the triac can be driven to conduct thereby enabling illumination of the LED so as to effectively save the power consumed by the nightlight.

07-26-2012

20130207553

Load Control SystemHaving a Rotary Actuator - A load control device for controlling the amount of power delivered from an AC power source to an electrical load comprises a rotary actuator, such as a rotary knob or a rotary wheel. The load control device increases and decreases the amount of power delivered to the electrical load in response to rotations of the rotary knob in first and second directions, respectively. The load control device accelerates the rate of change of the amount of power delivered to the load in response to the angular velocity of the rotary actuator. The load control device generates a ratcheting sound when the rotary actuator is rotated in the first direction at a high-end intensity of the load control device. The load control device is operable to control the electrical load in response to both actuations of the rotary actuator and digital messages received via a communication link.

08-15-2013

20110062874

LED calibration systems and related methods - LED calibration systems and related methods are disclosed that use the photo-sensitivity of LEDs to correct for variations between LEDs during initial production and over the lifetime of systems using LEDs. The disclosed systems and methods include methods to set the color or color temperature produced by a group of LEDs during the manufacturing of a device such as a lamp, an LED display, or an LCD backlight, and maintaining such color or color temperature over the operating life of such a device. The methods involve measuring the intensity and/or wavelength of light produced by each LED within a group of LEDs and adjusting an amount of light generated by the LEDs to produce precise color and intensity from the group of LEDs. Two methods that operate some of the LEDs in photovoltaic or photoconductive mode to measure the light intensity produced by other LEDs in the group are presented. The first method uses an additional light source as a reference and determines the light intensity emitted from each LED relative to such reference, while the second method determines the light intensity emitted from each LED relative to each other.

03-17-2011

20110074298

LIGHT EMITTING DEVICE WITH VARIABLE VOLUME - This invention provides a light emitting device with variable volume. The light emitting device includes a main body with variable volume, a sensor, a light emitting element, and a controller. The sensor is disposed in the main body for generating a volume measuring signal. The light emitting element is disposed in the main body. The controller is coupled with the light emitting element and the sensor. The controller controls brightness of the light emitting element according to the volume measuring signal.

03-31-2011

20100244709

Wireless Battery-Powered Daylight Sensor - A wireless battery-powered daylight sensor for measuring a total light intensity in a space is operable to transmit wireless signals using a variable transmission rate that is dependent upon the total light intensity in the space. The sensor comprises a photosensitive circuit, a wireless transmitter for transmitting the wireless signals, a controller coupled to the photosensitive circuit and the wireless transmitter, and a battery for powering the photosensitive circuit, the wireless transmitter, and the controller. The photosensitive circuit is operable to generate a light intensity control signal in response to the total light intensity in the space. The controller transmits the wireless signals in response to the light intensity control signal using the variable transmission rate that is dependent upon the total light intensity in the space. The variable transmission rate may be dependent upon an amount of change of the total light intensity in the space. In addition, the variable transmission rate may be further dependent upon a rate of change of the total light intensity in the space.

09-30-2010

20090243496

APPARATUS AND METHOD OF DRIVING BACKLIGHT UNIT AND DISPLAY APPARATUS EMPLOYING THE SAME - An apparatus and a method of driving a backlight unit and a display apparatus employing the same. Wherein a driving current, which is divided in a step-by-step fashion, is sequentially changed and output according to a current control signal. The current control signal is divided into low levels and high levels that are consecutively and repeatedly applied to a backlight controller. The driving current is reduced from a reference current corresponding to a number of the high levels during a time period that starts when the low level is applied for at least a first reference time interval and ends when the high level is applied for at least a second reference time interval.

10-01-2009

20120293079

LIGHT EMISSION CONTROL OF EXTERNAL FLASH FOR DIGITAL CAMERA - An external flash is attached to a digital camera with an internal flash and is operable selectably in two or three modes. Its control system includes a signal detecting device for detecting a signal for starting emission of light by receiving the detected signal and a single maneuverable device for being handled by a user to select one of these modes.

11-22-2012

20110121739

LIGHT EMITTING DIODE LAMP AND CONTROL CIRCUIT THEREOF - A control circuit of an LED lamp includes a voltage regulator, at least a photo resistor and a feedback circuit. The voltage regulator includes an output terminal and a feedback terminal. The feedback circuit includes an amplifier having a first input end, a second input end and an output end. The LED lamp is connected between the first input end of the amplifier and the output terminal of the voltage regulator. The at least a photo resistor can sense a change of brightness level of an environment surrounding the LED lamp and a resistance of the at least a photo resistor increases along with a decrease of the brightness level. The change of resistance of the photo resistor is fed back to the voltage regulator via the amplifier, to thereby control an electric current flowing through the LED lamp.

05-26-2011

20120176043

LIGHT CONTROL SIGNAL GENERATING CIRCUIT - A light control signal generating circuit includes a photosensitive element, two transistors, and four resistances. A first resistance and the photosensitive element are connected in series between a power voltage terminal and a ground terminal. A base electrode of a first transistor is connected to a node between the first resistance and the photosensitive element, a collecting electrode is connected to the power voltage terminal through a second resistance, and an emitting electrode is connected to the ground terminal through a third resistance. A base electrode of a second transistor is connected to a node between the second resistance and the first transistor, a collecting electrode is connected to the power voltage terminal through a fourth resistance, and an emitting electrode is connected to the ground terminal through the third resistance. An output terminal is formed from a node between the fourth resistance and the second transistor.

07-12-2012

20140203713

Wireless Sensor Having a Variable Transmission Rate - A wireless battery-powered daylight sensor for measuring a total light intensity in a space is operable to transmit wireless signals using a variable transmission rate that is dependent upon the total light intensity in the space. The sensor comprises a photosensitive circuit, a wireless transmitter for transmitting the wireless signals, a controller coupled to the photosensitive circuit and the wireless transmitter, and a battery for powering the photosensitive circuit, the wireless transmitter, and the controller. The photosensitive circuit is operable to generate a light intensity control signal in response to the total light intensity in the space. The controller transmits the wireless signals in response to the light intensity control signal using the variable transmission rate that is dependent upon the total light intensity in the space. The variable transmission rate may be dependent upon an amount of change of the total light intensity in the space. In addition, the variable transmission rate may be further dependent upon a rate of change of the total light intensity in the space.

07-24-2014

20160037597

OVERHEATING SAFETY DEVICE AND LUMINAIRE - A luminaire includes a light source and an electrical path for providing power to the light source. A switch is in the electrical path and is operable to interrupt and complete the electrical path. An infrared sensor detects an object in proximity to the light source for controlling operation of the switch.

02-04-2016

20090261739

Portable Electronic Device and Light Flickering Method for Light Emitting Element Thereof - A portable electronic device and a light flickering method for light emitting elements thereof are both disclosed herein. The portable electronic device includes at least one light emitting element. The light flickering method comprises the following steps: setting personalized light flickering data with a user interface; storing the personalized light flickering data; generating a control signal in accordance with the personalized light flickering data; and generating a driving signal in accordance with the control signal and driving the light emitting elements with the driving signal.

10-22-2009

20130257295

ELECTRONIC CONTROL SYSTEM FOR OPERATING A STREET LAMP - An electronic control system for operating lighting is rated and operable from normal AC mains supply voltages. A street light controller is adapted to activate a luminaire when ambient light levels are considered too dark and, conversely, when ambient light levels are sufficient, the luminaire is turned off.

10-03-2013

20130257294

ILLUMINATING APPARATUS AND CONTROL METHOD FOR KEEPING A CONSTANT TOTAL BRIGHTNESS OF AMBIENT LIGHT AND LIGHT PRODUCED BY THE ILLUMINATING APPARATUS - An illuminating apparatus and control method is adapted to keep a constant total brightness of the ambient light and light produced by the illuminating apparatus. The illuminating apparatus has a control module storing an objective brightness and detect the ambient brightness through an optical sensor. The control module turns on a lamp according to a comparison result of the objective brightness and the ambient brightness. Hence, a total brightness of the lamp's brightness and the ambient brightness is adjustable to be equally bright as the objective brightness. The illuminating apparatus of the invention does not provide excessive brightness and accordingly conserves electric power energy.

10-03-2013

20110012516

CONTROL OF OUTPUT VOLTAGE PROVIDED TO A FLASH UNIT - A device includes a flash unit to generate light, and an optical sensor to receive the light from the flash unit, and generate a light intensity signal based on the received light. The device also includes a controller to generate a modified error signal based on the light intensity signal. The device further includes a control circuit to receive the modified error signal from the controller, receive an output voltage from a power source associated with the device, control the output voltage based on the modified error signal, and provide the controlled output voltage to the flash unit.

01-20-2011

20100201277

DISPLAY DEVICE AND ELECTRONIC MACHINE HAVING THE SAME - A display device capable of detecting the light intensity of ambient light with high accuracy is disclosed. The display device has a backlight light source and a photo sensing unit. The display device also includes a voltage supply unit for providing a voltage, which makes the photo sensing unit output a certain amount of photocurrent to the photo sensing unit; and a supply voltage control unit for modulating the voltage supplied to the photo sensing unit based on the operation status of the backlight light source. The supply voltage control unit controls the voltage supply unit by the way of outputting a voltage of a first voltage to the photo sensing unit while the backlight light source is operating; and outputting a voltage of a second voltage, which is different from the first voltage, to the photo sensing unit while the backlight light source is not operating.

08-12-2010

20130285559

FLUORESCENT SCREEN AND IMAGE DISPLAY DEVICE COMPRISING SAME - A fluorescent screen includes a phosphor layer including a phosphor that absorbs excitation light to emit fluorescence, a reflecting layer that is provided on one surface of the phosphor layer so as to transmit the excitation light and to reflect, to the phosphor layer, a part of fluorescence that is emitted from the phosphor and that exits from the one surface; and a plurality of holes that penetrates the reflecting layer.

OPTICAL DEVICE - An optical device has a tube including a tube wall defining a viewing bore. A light source is in communication with the viewing bore for illuminating an aim point visible in the viewing bore. A control system includes a circuit board supported by the tube exterior of the viewing bore. The control system is in communication with the light source for controlling brightness of the illuminated aim point. The control system includes a light sensor mounted to the circuit board and extending from the circuit board through the tube wall into the viewing bore for sensing light in the viewing bore.

01-19-2012

20120274222

SYSTEMS AND METHOD FOR LIGHTING AISLES - A lighting fixture for aisle lighting in a building includes processing electronics. The processing electronics are configured to cause the lighting fixture to provide increasing levels of illumination in response to state changes associated with sensed motion in the building.

11-01-2012

20130320865

SENSOR DEVICE - A sensor device includes a sensor that transmits radio waves of a predetermined frequency and receives reflected waves of the transmitted radio waves. The sensor device detects presence of a moving body based on a difference between a frequency of the transmitted radio waves and a frequency of the reflected waves to activate a light source in accordance with the detection. A processor generates a sensor signal indicating the detection of the sensor. A determination unit determines whether or not the sensor signal has an intensity that is greater than a predetermined threshold. A controller controls activation of the light source when determined that the intensity of the signal is greater than the threshold. The controller restricts activation of the light source when determined that the intensity of the sensor signal is greater than the threshold until a first specified time elapses from the determination.

12-05-2013

20110175534

ILLUMINATION DEVICE CAPABLE OF ADJUSTING LIGHT BRIGHTNESS AND METHOD THEREOF - An illumination device includes a light sensor, a light-emitting unit, a switch unit and a processing unit. The light sensor is configured for sensing ambient light intensity and providing results based on the sensed light intensity. The switch unit is configured for controlling the electrical connection between the light-emitting unit and a power unit. The processing unit includes a control module and a light adjusting module. The controlling module is configured for turning off the switch unit to cut off the electrical connection between the light-emitting unit and the power unit during the sensing of the light intensity. The light adjusting module is configured for adjusting the brightness of the light-emitting unit according to the results provided by the light sensor. A related method is also provided.

07-21-2011

20130234607

LED LIGHTING CONTROL APPARATUS AND METHOD BASED ON VISIBLE LIGHT COMMUNICATION - Disclosed herein is an LED lighting control apparatus and method based on visible light communication. The LED lighting control apparatus includes lighting information collection means for collecting status information about lighting means and environmental information about surroundings of the lighting means, and transmitting the collected information to lighting control means. The lighting information collection means includes a visible light reception processing unit for receiving the status information about the lighting means contained in a visible light signal emitted from the lighting means, a lighting information analysis unit including a plurality of environmental information sensors for detecting the environmental information about the surroundings of the lighting means, the lighting information analysis unit analyzing the environmental information detected by the environmental information sensors, and a lighting information control unit for collecting the status information and the analyzed environmental information and transmitting the collected information to the lighting control means.

09-12-2013

20130234606

Method and System for Adjusting Power Supply and Display Screen Brightness of Electronic Device with Thin-Film Solar Panel - A method and system for adjusting power supply and display screen brightness of an electronic device with a thin-film solar panel are introduced. The method includes configuring the electronic device with a first threshold level and a second threshold level, wherein the first threshold level and the second threshold level are voltage levels or current levels; attaching the thin-film solar panel to a casing of the electronic device for enabling the electronic device to convert an external light into a transformed voltage or current; and determining whether the transformed voltage or current lies between the first threshold level and the second threshold level to decide whether to allow the display screen to operate at an existing brightness level thereof continuously. The method and system enable the electronic device to receive the external light for supplementing power supple and sense the external light for adjusting power level.

09-12-2013

20100277081

CLOCK BRIGHTNESS CONTROL CIRCUIT - A clock brightness control circuit includes at least a photosensitive element connected with a current limiting element and a current regulating element. The current limiting element and the current regulating element are connected with a light-emitting element of a clock, and adjust a current flowing through the light-emitting element under control of the photosensitive element in response to ambient light illumination. The clock brightness control circuit can adjust the brightness of the clock upon a change of the ambient light illumination when the circuit is applied in the clock.

11-04-2010

20160120007

SMART LIGHTING SYSTEM - According to at least one embodiment, a computer-implemented method to illuminate a room is described. At least one person entering the room may be identified. The room may be illuminated based at least in part on the identifying. An occupancy count for the room may be maintained based at least in part on the illuminating, wherein the occupancy count comprises a number of one or more people present in the room. The room may be darkened based at least in part on the occupancy count for the room reaching a pre-determined count.

04-28-2016

20160119986

LIGHT-EMITTING DIODE DEVICE - A light-emitting diode (LED) device is capable of regulation of an operating current, and includes an LED unit configured to receive a direct current (DC) voltage for generating the operating current flowing therethrough, a regulating unit electrically connected to the LED unit, and a control unit electrically connected to the regulating unit. The regulating unit is configured to regulate the operating current so as to generate a limiting current flowing therethrough. The control unit is configured to control the regulating unit, according to one of the DC voltage and the limiting current, to generate the limiting current having a magnitude within a fixed range for regulating the operating current.

04-28-2016

20100225236

Statistical Illuminator - The technology disclosed relates to an illumination source including numerous laser diodes. In particular, it relates to extending the duty cycle and/or reducing the frequency of component replacement by detecting failure of one or more individual laser diodes and compensating for the failure, without replacing the laser diodes.

09-09-2010

20100148678

LED Brightness Control by Variable Frequency Modulation - Perceived intensity (brightness) of light from a light emitting diode (LED) is controlled with a pulse train signal having fixed pulse width and voltage amplitude and then increasing or decreasing the frequency (increasing or decreasing the number of pulses over a time period) of this pulse train signal so as to vary the average current through the LED. This reduces the level of electro-magnetic interference (EMI) at any one frequency by varying the pulse train energy spectrum over a plurality of frequencies.

06-17-2010

20130293121

DISPLAY CONTROLLER AND DISPLAY SYSTEM - A display controller controls the display luminance of a display device in dependence on the ambient light level. It also controls the amount of the dynamic range compression of the input display data, the amount of compression depending on the ambient light level. The dynamic range of the display data is compressed to match the dynamic range of the display device. The dynamic range of the display device depends on the ambient light level and the display luminance.

11-07-2013

20120133287

Wireless Sensor Having a Variable Transmission Rate - A sensing device transmits wireless signals when an error between at least one sampled parameter value and at least one predicted parameter value is too great, such that the sensing device transmits wireless signals to a load control device using a variable transmission rate that is dependent upon the amount of change in a value of the parameter. The sensing device uses the one or more estimators to determine the predicted parameter value, and may transmit the estimators to the load control device if the error is too great. The load control device uses the estimators to determine at least one estimated parameter value and controls the electrical load in response to the estimated parameter value. The sensing device may comprise, for example, a daylight sensor for measuring a total light intensity in the space around the sensor or a temperature sensor for measuring a temperature around the sensor.

05-31-2012

20130293119

UNIVERSAL BALLAST - A universal ballast. The ballast includes a power converter, a transformer, a current sensor, and a controller. The power converter is configured to receive an input signal and convert the input signal to a direct current (DC) voltage having a first magnitude. The transformer has a center-tapped primary winding coupled to the power converter and a secondary winding coupled to a lamp. The current sensor is configured to sense a current in the secondary winding. And the controller is configured to receive an indication of the detected current from the current sensor and to determine correct operating parameters for the lamp.

11-07-2013

20130293120

LUMINENCE CONTROL OF GAS-DISCHARGE LAMPS - A ballast. The ballast includes a lamp driver and a controller. The lamp driver is configured to power a gas discharge lamp, and the controller includes a non-volatile memory configured to save one or more parameters related to operation of the gas discharge lamp in the non-volatile memory. The controller is further configured to control the lamp driver based on the one or more parameters.

11-07-2013

20100219762

Solar Lighting System and Device and Methods Thereof - A lighting system and device configured to receive solar radiation from a solar radiation source and methods thereof are provided, wherein the lighting device includes a support structure, a light source connected to the support structure, and an attachment bracket connected to the support structure. The lighting device further includes a support bracket moveably connected to the attachment bracket, wherein the support bracket has an archical shape, and a solar panel attached to the support bracket, wherein an angle of the solar panel with respect to the solar radiation source is altered as a function of the moveable connection of the support bracket to the attachment bracket and the archical shape of the support bracket.

09-02-2010

20110210672

ILLUMINATION CONTROL APPARATUS - An illumination control apparatus configured to control brightness of a plurality of illumination devices that is provided in a plurality of sections, respectively, includes: a detection unit configured to detect presence or absence of a person in each of the plurality of sections based on an output of a video camera configured to take images of the plurality of sections; and a control unit configured to turn on an illumination device of a detected section among the plurality of illumination devices, the detected section being a section where a person is detected, turn off an illumination device of a section other than the detected section and an adjacent section among the plurality of illumination devices, the adjacent section being a section adjacent to the detected section, and control brightness of the illumination device of the adjacent section so that illuminance of the detected section becomes predetermined illuminance.

09-01-2011

20120242232

DISPLAY DEVICE AND ILLUMINATION UNIT - A display device includes: a reflective image display unit having a display region provided with an array of pixels; an illumination unit that illuminates the display region of the image display unit; and a light control unit that controls the intensity of the illumination light from the illumination unit according to ambient illuminance.

09-27-2012

20100244708

LIGHTING CONTROL SYSTEM AND METHOD - A lighting control system for controlling the lighting of a predetermined area is provided. According to one embodiment, the lighting control system comprises one or more light sources positioned in the predetermined area, the light source configured to include adjustable light intensity; a camera positioned and configured to capture an image of the predetermined area; and a controller in operable communication with the one or more light sources and the camera, the controller configured to control the one or more light sources and adjust the light intensity of the light source. The controller is configured to operate in a closed control loop to automatically adjust the lighting conditions of a predetermined area or environment. A false alarm checking process checks for temporary or localized events to prevent unnecessary lighting adjustments.

09-30-2010

20110057570

Method and System for Luminance Characterization - A system for luminance characterization of a luminaire includes a ballast coil and a multi-tap capacitor connected in series with the ballast coil. The multi-tap capacitor has a plurality of tap capacitors integrated into a capacitor housing. A plurality of switches are each coupled to one of the plurality of tap capacitors for selectively coupling the tap capacitors together to produce a multi-tap capacitance corresponding to a configuration of the plurality of switches. A lamp is connected in series with the multi-tap capacitor and the ballast coil. A photometer is located to measure light intensity of the lamp and to produce a lumen output measurement. A memory is used to store a database having a plurality of lumen output measurements, each corresponding to a multi-tap capacitance corresponding to all configurations of the plurality of switches.

METHOD AND APPARATUS FOR ADJUSTING AN AMBIENT LIGHT THRESHOLD - A load control device adapted to be coupled between an AC power source and an electrical load for controlling the power delivered to the load includes a controller, an actuator for turning the electrical load on and off, an occupancy detection circuit, and an ambient light detector. The load control device automatically turns on the electrical load in response to the presence of an occupant only if the detected ambient light is below a predetermined ambient light level threshold. After first detecting the presence of an occupant, the load control device monitors actuations of the actuator to determine whether a user has changed the state of the load. The load control device automatically adjusts the predetermined ambient light level threshold in response to the user actuations that change the state of the load.

12-13-2012

20120313534

LOW PROFILE LAMP USING TIR LENS - A lamp is provided which is suitable for use in low-profile applications. The lamp includes a light source and a lens. The lens includes a first surface opposite a second surface, where the second surface includes an injection surface and the first surface includes a multi-faceted optical element converging towards the injection surface. The light source injects light into the lens via the injection surface and the light refracts through the first surface while total internally reflecting off the first surface and the second surface toward the periphery of the lens.

12-13-2012

20120268019

LIGHTING APPARATUS AND METHODS FOR CONTROLLING LIGHTING APPARATUS USING AMBIENT LIGHT LEVELS - Lighting apparatus and methods for controlling lighting apparatus using ambient light levels are disclosed. A controller is used to activate and deactivate one or more light radiating devices within a duty cycle. The controller uses a light detection apparatus to sample ambient light levels at a plurality of sampling times during which the light radiating devices are deactivated. The controller determines an average for the light levels sampled over a survey time period, thus generating an averaged ambient light level over the survey time period. The controller adjusts an intensity of the light radiating devices based at least partially upon the averaged ambient light level. The controller may generate a target light level using the averaged ambient light level over the survey time period and a desired light level and, over an adjustment time period, incrementally adjust the intensity of the light radiating devices towards the target light level.

10-25-2012

20140265882

SYSTEM AND METHOD FOR CONTROLLING LIGHTING - A system for controlling a light source to enhance the appearance of one or more objects within an environment illuminated by the light source. The system includes a tunable white light source to illuminate an object and a camera configured to capture one or more digital images the object and identify attributes of the object, including object color values. The system further includes a light control module configured to determine at least one optimal lighting condition for the light source based, at least in part, on the object attributes, wherein the optimal lighting condition is configured to enhance the appearance of the object illuminated by the light source while maintaining the overall appearance of light within the environment. The light control module is further configured to adjust the spectral composition of the light source based on the optimal lighting condition.

09-18-2014

20140265880

DIGITAL LOAD CONTROL SYSTEM PROVIDING POWER AND COMMUNICATION VIA EXISTING POWER WIRING - A two-way load control system comprises a power device, such as a load control device for controlling an electrical load receiving power from an AC power source, and a controller adapted to be coupled in series between the source and the power device. The load control system may be installed without requiring any additional wires to be run, and is easily configured without the need for a computer or an advanced commissioning procedure. The power device receives both power and communication over two wires. The controller generates a phase-control voltage and transmits a forward digital message to the power device by encoding digital information in timing edges of the phase-control voltage. The power device transmits a reverse digital message to the controller via the power wiring.

EDGE LIT LUMINAIRES FOR WINDOWS - A luminaire is provided that is configured as a window having a light guide with one or more light sources coupled to one or more edges of the light guide. Light emitted from the light guide can be used e.g., to supplement natural light passing through the window or to provide illumination when natural light is not available. Because the light source (or light sources) is incorporated into the window along one or more edges of the light guide, the light source can be either partially or totally concealed from view so as to create an appearance that can have aesthetic advantages. For example, exemplary embodiments of the present invention can have an appearance that is the same or similar to a conventional window/skylight.

11-21-2013

20130264949

SENSOR COMPRISING AT LEAST A VERTICAL DOUBLE JUNCTION PHOTODIODE, BEING INTEGRATED ON A SEMICONDUCTOR SUBSTRATE AND CORRESPONDING INTEGRATION PROCESS - An embodiment relates to a sensor being integrated on a semiconductor substrate and comprising at least a vertical double-junction photodiode, in turn comprising at least one first and one second p-n junction formed in said semiconductor substrate, as well as at least an anti-reflection coating formed on said photodiode. Said at least one anti-reflection coating comprises at least one first and one second different anti-reflection layer being suitable to obtain a responsivity peak in correspondence with a predetermined wavelength of an incident optical signal on said sensor. An embodiment also relates to an integration process of such a sensor, as well as to an ambient light sensor made by means of such a sensor.

CAMOUFLAGE PANEL - A camouflage panel arranged to be attachable to an outer area of a submarine is disclosed. The panel comprises a light emitter operable such that light is emitted from a surface of the panel. The intensity and colour of the emitted light being controllable in response to a control signal received from a sensor arranged to sense the intensity and colour of light in the region of the submarine. Apparatus comprising a number of such panels is also disclosed.

04-28-2011

20110068699

Broad spectrum light source calibration systems and related methods - Systems and methods are disclosed for light sources that use the photo-sensitivity of one or more colored LEDs to determine at least a portion of the emission spectrum of a white light source or other broad spectrum light emitter. As described herein, a white LED or other broad spectrum light emitter can be used as the light source, if desired, along with one or more additional colored LEDs, and the same colored LEDs can be used to emit light and to adjust a color point produced by the light source. Applications for the disclosed embodiments include but are not limited to general lighting, LCD backlighting, projectors, and direct emission displays such as OLEDs and digital billboards.

03-24-2011

20130271015

LIGHTING SYTEM AND METHOD THEREOF - Nightlight with motiondetector The present invention discloses a lighting system comprising: a light source, configured to generate light having wavelength in the range of [550 nm, 700 nm]; a sensor, configured to detect an activity of an object; and a controller, configured to control the working status of the light source based on the detection result of the sensor. The present invention further discloses a method of providing light.

10-17-2013

20100026195

Multi-Modal Light - The invention is a light that operates in many different modes based on a settings switch and environmental conditions such as ambient light levels and the detection of movement near the light. In one of the modes, the light will only come on after a darkness threshold has been reached and movement is detected near the light. By limiting when the light is on maximizes the amount of time the light can operate without recharging the energy storage unit. In another mode, the light comes on when there is movement detected near the light regardless of the darkness threshold conditions. A walk-in closet light is an example of this type of light use. In all modes the light will operate for multiple days without power being available to recharge the energy storage unit. In each mode, the light brightness is determined by the brightness control. Lowering the brightness will increase the time the light will operate without an external power source to recharge the energy storage unit.

02-04-2010

20150342001

Method and System for Illumination Management - A luminaire can comprise a system that automatically adjusts light output from the luminaire to control light level in an illuminated area. The system can increase light output if the light level in the area falls below a target light level or decrease light output if the light level in the area rises above the target. For example, when the area is illuminated by a combination of sunlight and luminaire light, the light level can be maintained at the target level by gradually decreasing light output as the sunlight contribution increases in the morning and by gradually increasing light output as the sunlight contribution decreases in the evening. The system adjustments can take into consideration whether the light level is offset from the target due to a change in the target or a short-term fluctuation that may be due to a cloud temporarily blocking the sun.

11-26-2015

20100327757

INTELLIGENT LED LAMP - An intelligent light emitting diode (LED) lamp includes a power management unit connected to a power source configured for supplying power; a LED lighting unit; a motion sensor configured for detecting whether there is someone around the LED lamp and producing a trigger signal when detecting that someone is around; a light detector configured for detecting current ambient light level and generating a light signal according to the current ambient light level; and a processing unit configured for controlling the LED lighting unit to light, generating and passing on a communication signal to other LED lamps, upon condition that the trigger signal is received and the current ambient light level is determined less than a predetermined value according to the light signal.

12-30-2010

20140300280

COLOR-CHANGEABLE LAMP - A color-changeable lamp includes a base, a control unit, a deformable lamp body, a color-sensing unit, a pressure-sensing unit and a light-emitting unit. The deformable lamp body is connected with the base and has a closed space. The control unit, the color-sensing unit and the light-emitting unit are disposed at the base. The pressure-sensing unit is disposed in the closed space. The color-sensing unit can sense a color of a target and generate a color signal corresponding to the color of the target, and the pressure-sensing unit can sense the air pressure in the closed space and send a pressure signal to the control unit when the deformable lamp body is deformed. When the pressure signal reaches a predetermined value, the control unit controls the light-emitting unit to emit the light corresponding to the color signal according to the color signal.

10-09-2014

20110031889

AC-POWERED LED LIGHTING SYSTEM - The present invention relates to an AC-powered LED lighting system made in implementing AC-driven LED lightings that are achieved without the use of a dedicated circuit configuration such as SMPS, etc., but with the help of a simplified rectifier circuit and through adjustment of the number of LEDs. To this end, there is provided a lighting system composed of LED lightings, for which an LED module where LEDs are mounted is driven by an external AC input power. Here, an AC-powered LED lighting system comprises: a power source part receiving AC power from outside for use as a drive source of the system; a rectifying part rectifying the input power by a bridge rectifier circuit; and a LED driving part configured with a plurality of serially connected LEDs in correspondence to the input power, the LED driving part receiving rectified power from the rectifying part to drive the LEDs by a target voltage.

02-10-2011

20140062313

LIGHTING DEVICE AND LIGHTING FIXTURE USING THE SAME - The lighting device includes a light source unit including a plurality of light emission elements having different color temperatures; and a lighting control unit configured to control the light source unit. The lighting control unit is configured to perform: a first lighting process of supplying a first supply current to a first light emission element group of the plurality of the light emission elements such that the light source unit emits light having a first color temperature; and a second lighting process of supplying a second supply current to a second light emission element group of the plurality of the light emission elements such that the light source unit emits light having a second color temperature different from the first color temperature. The lighting control unit is configured to adjust magnitudes of each of the first supply current and the second supply current such that first luminous flux of the light source unit in the first lighting process is identical to second luminous flux of the light source unit in the second lighting process.

03-06-2014

20140015420

CIRCUIT FOR EXPANDING THE DIMMING RANGE OF AN LED LAMP - A circuit and method for controlling one or more light emitting diodes (LEDs) includes one or more LEDs connected to the emitter a transistor and controlling the brightness of the LEDs over a large range based on a voltage range at a base of the transistor controlled by an automatic adjusting mechanism.

01-16-2014

20130009554

Light Programmable Apparatus with Light Programmable Lamp, Setting Device, and Main Structure - The invention relates to a light programmable apparatus comprising a light programmable lamp, a setting device and a main structure. The light programmable lamp is selectively electrically connected to the setting device for retrieving a light property setting such as intensity, saturation or color from the setting device. The light programmable lamp comprises: a programmable unit for retrieving and storing the light property setting while the light programmable lamp is selectively electrically connected to the setting device; and a LED module, electrically connected to the programmable unit, for emitting light corresponding to the light property setting.

ELECTRODELESS PLASMA LAMP SYSTEMS AND METHODS - Systems and methods for an electrodeless plasma lamp as described. A drive probe is coupled to the lamp body to provide the primary power for ignition and steady state operation of the lamp. Feedback is used to adjust frequency in response to changing conditions of the lamp during startup. A phase shifter is used to adjust the phase of the power between ignition and steady state operation. A sensor may detect a lamp operating condition that automatically triggers a shift in phase after the fill in the bulb is vaporized. The phase shift may then continue to be adjusted as the plasma heats up and the impedance continues to change. The bias conditions of an amplifier may be changed to change the operating class of the amplifier for different modes of the lamp.

10-07-2010

20130234605

Hybrid Outdoor Streetlamp Assembly - An outdoor light assembly is structured as a generally vertically oriented pole and includes a lamp atop the pole, a solar panel array atop the lamp, a wind turbine attached to a generator, and a battery. The wind turbine drives the generator and the generator and the solar panel array both output electrical energy stored to the battery. The battery delivers the stored energy to the lamp. The wind turbine is housed within a cage defined in the pole at a midpoint in a vertical extent of the pole and generally coaxial with the pole. The solar panel array atop the lamp is substantially hidden from below by the pole and the lamp.

09-12-2013

20140300279

LIGHT EMITTING SYSTEM AND LIGHT EMITTING INSTRUCTION APPARATUS - An apparatus and a system using an infrared ray for performing a variety of stage effect operations. In a light emitting system including a light emitting instruction apparatus and a light emitting device, the light emitting instruction apparatus includes an infrared output which outputs an infrared signal modulated by a control code, and the light emitting device includes a receiver which receives the infrared signal, an extractor which extracts the control code from the infrared signal acquired by the receiver, a light emitter which emits visible light in a plurality of colors, and a controller which executes drive control of the light emitter. The control code transmitted by the light emitting instruction apparatus includes a plurality of verification codes which verify whether to match with ID codes preliminarily stored in the light emitter.

10-09-2014

20130257296

Distributed Lighting Control of an Area - Methods and apparatuses of distributed lighting control are disclosed. One embodiment includes a lighting apparatus. The lighting apparatus includes a light, a sensor associated with the light for sensing a change of light intensity per unit of time greater than a sense threshold, and a controller. The controller is operative to determine if the light is within an area, activate the light at a preselected area light intensity if a light associated with the sensor is within the area and the sensed change of light intensity per unit of time is greater than the sense threshold, and if the light is not within the area, then the light only activates if motion is additionally detected, thereby increasing light intensity over a target area.

10-03-2013

20120319598

APPARATUS FOR AND METHOD OF CONTROLLING DIMMING OF STREET LAMP - A dimming controlling apparatus including: a lighting driving unit for driving a lighting appliance; a power supply unit for supplying power required to drive the lighting appliance; a storage unit for storing a plurality of dimming profiles including time zones for driving the lighting appliance and dimming levels in accordance to the time zones; and a controller for controlling the lighting driving unit and the power supply unit by using the dimming profiles. An operating time of the lighting appliance is divided into a plurality of time zones, and dimming profiles are generated to include an intensity of illumination for driving the lighting appliance in each of the plurality of time zones and each of the time zones.

12-20-2012

20100213856

POWER SUPPLY APPARATUS, METHOD FOR DRIVING POWER SUPPLY APPARATUS, LIGHT SOURCE APPARATUS EQUIPPED WITH POWER SUPPLY APPARATUS, AND ELECTRONIC APPARATUS - A power supply apparatus includes an AC/DC circuit, a DC/DC converter, a detection circuit, a digital IC, and a gate driver, and the like. A control formula used for phase compensation for each of a plurality of drive frequencies is stored in a memory of the digital IC. The power supply apparatus makes it possible to obtain a target voltage quickly by performing driving operation with a driving signal having a higher drive frequency at the time of activation. In addition, the power supply apparatus makes it possible to increase circuit efficiency by switching over from the driving signal having the higher drive frequency to a driving signal having a lower drive frequency upon reaching the target voltage.

08-26-2010

20120081012

COLOR MATCHING FOR DISPLAY SYSTEM FOR SHOPS - A color identifying display system having a lighting surface having an alterable apparent surface color, a color capture device to capture a color of an object placed within a detection area, and a processor. The lighting surface and the color capture device are coupled to the processor. The processor analyzes the captured color to determine a prominent color of the object and to control a color of the lighting surface based on the determined prominent color. The color of the lighting surface may be adjusted to match the prominent color, complement the prominent color, or be analogous to the prominent color.

04-05-2012

20100052550

HEADLAMP CONTROL DEVICE AND VEHICLE HEADLAMP HAVING HEADLAMP CONTROL DEVICE - A headlamp control device is provided. The device includes a visual object luminance unit, an adapted state unit, a recognition limit unit, a visual object recognition unit, and a light distribution control unit. The visual object luminance unit estimates a visual object luminance based on information about a vehicle forward captured image. The adapted state unit estimates an adaptation luminance based on the information about the vehicle forward captured image. The recognition limit unit estimates a recognition limit luminance, in the visual object range, based on at least the adaptation luminance. The visual object recognition unit determines whether the visual object luminance is less than the recognition limit luminance. The light distribution control unit controls a light distribution of a headlamp unit such that the visual object luminance is included in a range of the recognition limit luminance, if the visual object luminance is less than the recognition limit luminance.

03-04-2010

20160128166

OCCUPANCY SENSOR HAVING AUTOMATED HYSTERESIS ADJUSTMENT FOR OPEN-LOOP DAYLIGHTING OPERATION - A system and method provide fail-safe operation of a lighting system. A lighting level detector is used to obtain a baseline lighting level for a low-intensity light. If the detector measures less than the baseline level when an occupancy sensor determines the space is unoccupied, a high-intensity light is energized and an indication is provided to a user that the low-intensity light has failed. A method provides daylighting operation of a lighting system. An occupancy sensor can have Wi-Fi functionality to enable remote configuration of the sensor. A line voltage occupancy sensor can include an interface with low voltage devices. An occupancy sensor can include an integral interface to enable an external control system to override the sensor's normal logic under emergency conditions. An occupancy sensor can include an active temperature compensation feature. An occupancy sensor can also incorporate an automatically adjustable coverage area.

05-05-2016

20160128158

LED ENVIRONMENT ENGINE - An environment engine with LED lighting is disclosed herein. According to one embodiment, a lighting system is disclosed having a sensor that detects a physical condition of a user. The physical condition includes one or more of a heart rate, a body temperature, and a rate of motion. The lighting system further includes a processor that receives an identification of the user via a radio module that communicates with a mobile device. The processor controls a lighting module based on the physical conditions detected by the sensor and the identification of the user.

05-05-2016

20140184084

ELECTRONIC INCENSE ASSEMBLY - An electronic incense assembly includes a burning chamber, an electronic stick, a camera module, an image processor and a controller. The burning chamber includes a sidewall. The electronic stick is positioned on the burning chamber, and includes a light guide bar and a light source. The light guide bar includes a first end and a second end away from the first end. The light source is positioned on the second end. The camera module is positioned on the sidewall. The image processor includes an environment brightness sensor. The controller is electrically connected to the camera module and the image processor. The environment brightness sensor is configured to sense an environment brightness based on a captured image captured by the camera module. The controller is configured to receive the environment brightness and to drive the light source to emit suitable light according to the environment brightness.

07-03-2014

20130175931

Triac Dimming Control System - A triac dimming control system processes the output of a triac based dimmer, generates a dimming control signal based on the output, and provides dimming at a load output based on the dimming control signal.

07-11-2013

20150054414

LUMINAIRE - When an operator operates an operation tool of a dimming operation terminal device in order to set the brightness of a lighting load to desired brightness, an energization electric signal, for example, a voltage level detected by a dimming control section changes. The dimming control section generates a dimming signal modulated according to the voltage level. Power supply to the dimming control section is performed by an insulated auxiliary power supply. Transmission of the dimming signal is performed via an insulating section.

02-26-2015

20150351195

WIRELESS LIGHT FIXTURE - A light fixture may have a housing containing a lighting element and any number of PCBs. A first PCB section may have circuitry that controls the lighting element. A second PCB section may have an antenna and circuitry that converts RF signals into control signal input to the first PCB section. The second PCB section may be operatively interconnected with the first PCB section, and may be contained in the housing in an orientation projecting from the first PCB section.

12-03-2015

20100176733

Automated Dimming Methods and Systems For Lighting - Automated control systems and methods for lighting systems are described herein. In certain embodiments, the control systems include either an improved dimmable ballast, an improved dimmer circuit, or both. The control systems are suitable for various applications including a light harvesting system and a security lighting system.

07-15-2010

20100201276

Method for saving power consumption of position sensitive detector - The present invention discloses a method for saving power consumption of a position sensitive detector used in a smart bathroom product. An infrared light emitting device included in the position sensitive detector has infrared light emitting modes of at least two strengths. The position sensitive detector determines the emitting strength to be adopted by the infrared light emitting device at the time of next infrared light emission based on the comparison between the strength of the reflected infrared signal received by the infrared light receiving device and a preset value set in the position sensitive detector. Thus, by switching between different emitting strength modes, the infrared light emitting device is made to use an emitting mode with a weak strength in the case that no one is using the position sensitive detector, thereby effectively decreasing the power consumption of the position sensitive detector in its operation.

08-12-2010

20150115807

LUMINAIRE CONTROLLER - Described herein is a luminaire controller for a luminaire in which dimming signals can be provided to control the operation of the luminaire. The controller also includes an energy measurement module connected to a mains supply, a sensor module, a power switch, a central processing module and a ZigBee transceiver module. The controller, in addition to providing dimming signals in accordance with ambient lighting conditions sensed by a photocell in the sensor module provides efficient energy metering. In one embodiment, the luminaire controller is directly mountable on a luminaire which is to for control thereof.

04-30-2015

20130181616

Control Circuit and Illuminating Device - The present invention relates to a control circuit for an illuminating device, characterized in that the control circuit comprises a detecting unit, a central control unit and an illumination mode control unit, the detecting unit detects ambient brightness and generates a detection signal, the central control unit controls the illumination mode control unit, according to the detection signal, to generate a plurality of first driving signal enabling the illuminating device to operate in a first illumination mode or a plurality of second driving signal enabling the illuminating device to operate in a second illumination mode. The control circuit can automatically adjust the illuminating device to be in different operation modes according to different ambient brightness.

07-18-2013

20130181615

DISPLAY DEVICE - Disclosed is a display device, the device including a light emitting part including a first electrode, an organic light emitting layer and a second electrode for radiating light of a first wavelength, a pixel part stacked on the light emitting part to radiate light of a second wavelength using a reflective light, and a capping layer arranged between the light emitting part and the pixel part to reflect the light of the first wavelength and to transmit the light of the second wavelength, whereby legibility, color reproduction range and power consumption can be enhanced.

07-18-2013

20150091449

LIGHT-SENSING ILLUMINATION SYSTEM - In one aspect, the present invention relates to an illumination system including a power source, a light source electrically coupled to the power source, and a light sensor electrically coupled to the power source and the light source. The light sensor activates the light source responsive to a pre-determined minimum-lumen threshold being reached. The illumination system is placed inside an interior of a dark area.

04-02-2015

20130169169

Momentary Night Light Assembly - This invention relates to assemblies used as night lights and contains certain embodiments that improve, add features, and/or lower the cost of the type of momentary night light defined by U.S. Pat. No. 7,253,570. These embodiments include multiple and supplemental light sources that enhance the performance of certain types of night lights, enabling better user night-vision and more efficient use of energy sources by the night light assemblies. Other embodiments include actuation of momentary night lights by remote control and the integration of momentary night lights and night lights into other products. The words “momentary night light assembly” as used in this invention means a light that remains lit for only a short fixed period of time following a transition from light to dark of the local ambient light. It then turns itself off after a short time period until another light to dark transition occurs. The words “night light” as used herein means a light that remains on while the local ambient light is dark following a light to dark transition. A night light may be an integral part of a momentary night light assembly.

07-04-2013

20140239822

Lighting Control Method, Computer Program Product and Lighting Control System - According to an aspect of the invention, a lighting control method is conceived for controlling the illumination of a working area, wherein an RFID-enabled light sensor attached to said working area measures incident light on the working area, and wherein an RFID-enabled luminary periodically reads the measured incident light from said RFID-enabled light sensor and adapts its light level in dependence on the measured incident light, such that a predefined illumination level on the working area is maintained.

POWER SUPPLY CIRCUIT AND LUMINAIRE - A power supply circuit includes a bridge circuit, a transformer, and a rectifying and smoothing circuit. The bridge circuit includes at least one switching element and converts a direct-current voltage into an alternating-current voltage according to ON and OFF of the switching element. The transformer includes a primary winding wire and a secondary winding wire. The rectifying and smoothing circuit converts the alternating-current voltage into a direct-current output voltage and supplies the direct-current output voltage to a direct-current load. When the number of turns of the primary winding wire is represented as N1, the number of turns of the secondary winding wire is represented as N2, a voltage value of the direct-current voltage is represented as VDC, and a lower limit value of the output voltage is represented as Vmin, a turn ratio of the primary winding wire and the secondary winding wire is about N1:N2=(VDC/2):Vmin.

04-02-2015

20100096997

Light sensing circuit and flat panel display including the same - A light sensing circuit for use in auto brightness control (ABC), and a flat panel display including the light sensing circuit. The light sensing circuit includes a first photodiode; a second photodiode which is electrically connected to the first photodiode and includes a shielding film for shielding externally incident light; a first voltage fixing unit which is connected to the first photodiode and the second photodiode and maintains a voltage applied to the first photodiode at a certain value; and an analog-to-digital converter (ADC) which generates a digital value that depends on a current flowing in the first photodiode and the second photodiode. Accordingly, the light sensing circuit can precisely sense the brightness of a surrounding environment and drive a flat panel display with the most suitable brightness.

04-22-2010

20150076996

LIGHTING SYSTEM AND CONTROL UNIT FOR SAME - A lighting system has at least one control unit which is designed to transmit control instructions, in particular control instructions corresponding to the DALI and/or DSI standard, to a plurality of operating devices assigned thereto, wherein the control instructions are generated on the basis of control information fed to the control unit. The control unit receives the control information in wireless fashion.

03-19-2015

20150076995

LED FLASHING LAMP - A LED flashing lamp contains: a transparent housing, a cell disposed in the transparent housing, a trigger switch, a photoresistor, a controller, and at least one LED light element. The cell is connected with a power supply end of the controller, the trigger switch has a first end for connecting with a negative electrode of the cell and a second end for coupling with a signal input end of the controller via the photoresistor, the at least one LED light element is in connection with an output end of the controller.

03-19-2015

20120286675

WIRELESS BATTERY-POWERED REMOTE CONTROL WITH GLOW-IN-THE-DARK FEATURE - A glow-in-the-dark night light for a control device allows the control device to be easily found when the control device is located in a dark space. The night light may be provided on an actuator of the control device and may comprises a glow-in-the-dark material that has a luminance spectrum that decays with time after initial excitation. The night light is illuminated by an electromagnetic-energy-generating element to periodically recharge the glow-in-the-dark material with adequate energy to keep the glow-in-the-dark material visible in low ambient light conditions. The electromagnetic-energy-generating element draws relatively little current, such that the night light may be provided in a battery-powered remote control that has an acceptable battery lifetime.

11-15-2012

20120001554

LINEAR LIGHT FIXTURES - Embodiments of the invention provide for a linear lighting system with a plurality of discrete light sources. Other embodiments of the invention include heat dissipation techniques and apparatus for a linear light system. Other embodiments of the invention include a two component lighting system that includes rails and nodes. In some embodiments, the lighting and control aspects can be divided between the rail and node. In yet other embodiments a linear lens providing a unique photometric distribution is provided.

01-05-2012

20120019151

AMBIENT LIGHT CALIBRATION FOR ENERGY EFFICIENCY IN DISPLAY SYSTEMS - A method, system, and apparatus that can be used to operate a display device in an energy efficient manner. The energy efficient display device can effectively and efficiently compensate for changes in ambient light incident at a display screen of the display device using an internal ambient light sensor to provide control signals to a backlight driver.

01-26-2012

20140042916

Electrically Illuminated Flame Simulator - An electrically powered flame simulator comprises at least two light sources, an integrated circuit electrically connected to the light sources for intermittently illuminating at least one of the light sources independently of other light sources such that the light sources together provide the effect of a flickering movement, and a power source for providing power to the integrated circuit. The flame simulator may be mounted in a decorative or ornamental device such as a candle or fire log, or used on decorative clothing, or may be part of a hazard or warning system. One or more solid state light sources may also be used.

02-13-2014

20140132159

LIGHT-INDUCED LUMINOUS KEYBOARD - A light-induced luminous keyboard includes a keyboard main part, a power supply, and a first circuit, a second circuit and a third circuit parallel to each other. The above circuits include two transistors and a negative coefficient photoresistor. While being played in a decreasing light intensity environment, the light-induced luminous keyboard has an increased resistance of a negative coefficient photoresistor and thus an increased voltage is divided for the negative coefficient photoresistor, the point that the base of the first transistor is connected with the first circuit is in a high level, thus the first transistor is available, the point that the base of the second transistor is connected with the second circuit is drawn down to zero volt, the second transistor is available, the luminous apparatus is turned on and the keyboard illuminates. Therefore, automatic illumination of the keyboard is implemented dependent on environmental light intensity.

05-15-2014

20110156597

LIQUID CRYSTAL DISPLAY WITH AMBIENT LIGHT SENSOR - A liquid crystal display includes a main body, a screen positioned on the main body, a backlight module positioned in the main body and supplying light for the screen, a controller for controlling the brightness of the backlight module and an ambient light sensor positioned on the main body. The ambient light sensor includes a barrel, an optical sheet positioned at an end of the barrel and a photosensitive unit positioned at the other end of the barrel. The photosensitive unit creates a signal according to the ambient light received via the optical sheet, and sends the signal to the controller. The controller adjusts the brightness of the backlight module. The optical sheet includes a first surface, a second surface opposite the first surface and a plurality of V-shaped micro structures formed on the first surface.

LIGHT EMITTING SYSTEM AND POWER CONTROL DEVICE THEREOF - A light emitting system includes a light emitting device having a forward voltage dependent on an ambient parameter, and a power control device including a current generator, a compensation voltage module, and a control signal generator. The current generator converts a control signal into a driving current for provision to the light emitting device, and provides a feedback voltage. The compensation voltage module obtains a compensation voltage according to the forward voltage, the feedback voltage, and a reference voltage. The control signal generator generates the control signal according to the compensation voltage for provision to the current generator.

01-09-2014

20130069544

MULTI-ELEMENT LED LAMP PACKAGE - A light emitting diode device (e.g., LED package) may include at least two light emitting devices that can be switched independently of one another and thus may be useful in vehicular lighting applications, for example low and high beam headlights. A LED device may include a first LED die and at least one additional LED die disposed at different positions within a common reflector cup or relative to a common lens. Multiple LED sub-assemblies may be mounted to a common lead frame along non-coincident principal axes. Methods for varying intensity or color from multi-LED lamps are further provided.

LIGHT SENSING IN DISPLAY DEVICE - A method for controlling an OLED display includes providing an OLED device and a controller, measuring and communicating the amount of ambient and emitted OLED light incident upon an array of photosensors distributed over the display area for measuring the incident light, operating the OLED pixels with at least one calibration image and forming an OLED compensation map in response to a first measured incident light, receiving a second incident light measurement and forming an ambient illumination map, receiving and compensating an image and driving the OLED pixels with the compensated image, receiving a third incident light measurement and forming large-area average values and small-area average values, and comparing the large-area average values and the small-area average values to a predetermined criterion, and determining the location of one or more light occlusions or reflections.

08-12-2010

20130043797

Lighting Control Systems and Methods - Systems and methods for lighting control are disclosed. The system may include at least one lighting device providing illumination and a handheld unit coupled with the lighting device to control at least one of a controllable lighting state, a controllable lighting intensity, and a controllable lighting effect of the lighting device. The handheld unit may include an image-capturing device and a processor coupled with the image-capturing device. The processor may be configured to control the image-capturing device to capture an image of a space affected by the lighting device; analyze an luminance level of the space; receive a lighting parameter; and provide a command to the lighting device for controlling at least one of the controllable lighting state, the controllable lighting intensity, and the controllable lighting effect of the lighting device based on at least one of the image, the luminance level, and the lighting parameter.

02-21-2013

20150355529

STROBOSCOPIC DEVICE AND IMAGE PICKUP DEVICE PROVIDED WITH SAME - A stroboscopic device includes a flash discharge tube having an anode and a cathode, and an auxiliary light emitter for emitting light toward cathode. The auxiliary light emitter includes a light-receiving element for measuring a light intensity of external light near the flash discharge tube, a comparator for comparing the light intensity of light received by the light-receiving element with a predetermined threshold immediately before or substantially simultaneously with the light-emission timing of the flash discharge tube, and a lighting section that is lit when the light intensity is lower than the predetermined threshold based on a result of comparison by the comparator. This achieves a stroboscopic device and image pickup device that can stably emit light from the flash discharge tube irrespective of the surrounding environment.

12-10-2015

20100109536

LED-based secondary general illumination lighting color slaved to primary general illumination lighting - One aspect relates to combining an at least one primary general illumination lighting with an at least one LED-based secondary general illumination lighting. The aspect further comprises sensing an at least one sensed electric characteristics used to produce the at least one primary general illumination lighting. The aspect further comprises controlling an optical characteristic of the at least one LED-based secondary general illumination lighting at least partially responsive to the sensing the at least one sensed electric characteristics used to produce the at least one primary general illumination lighting.

05-06-2010

20140077707

Electrical Switch Device With Automatic Dimming Control - The electrical switch device can includes a method and dimmer determination device that automatically determining a dimmer level for an electronic device. A signal is received and, when coupled with the time of day and the ambient light level, an appropriate algorithm can be selected. The output of the algorithm provides the dimmer level, which is sent to a controller for output to the electrical device. Based on user feedback, the algorithms and thresholds used to determine the dimmer level can be adjusted, created, and deleted to provide a more accurate dimming level in the future.

03-20-2014

20130002146

LAMP ARRANGEMENT - In various embodiments, a lamp arrangement with a lamp including a base which is able to be inserted into a socket for establishing contact with the lamp, wherein the lamp arrangement has at least one operating element for setting a property of the lamp, wherein the at least one operating element is not accessible when the lamp is being used in the intended manner.

01-03-2013

20130002145

DISPLAY DEVICE - A display device which adjusts luminance of a display panel is disclosed. The display device senses light which leaks from a display area to a non-display area and adjusts the luminance of the display panel according to the sensed light.

01-03-2013

20130249411

Light Emitting Module and Lighting System - A light emitting module includes a toric sealing unit which seals blue LEDs arranged in a toric shape on a substrate from above, and a sealing unit which seals red LEDs arranged in the vicinity of a center of the toric shape of the blue LEDs. The sealing unit is formed to fill the inside of the toric shape of the toric sealing unit. The sealing unit has a refractive index of light higher than that of the toric sealing unit. The light which are emitted from the blue LEDs and the red LEDs, are refracted on the interface between the sealing unit and sealed gas, and proceed to the direction of the sealed gas, thereby being composed appropriately.

09-26-2013

20130249410

DYNAMIC LIGHTING BASED ON ACTIVITY TYPE - Dynamic lighting techniques are disclosed that consider activity within a given area so as to provide lighting to that area with a high degree of context awareness. In some embodiments, the techniques not only consider physical activity within a given area, but further consider emotional activity within that area, and provide lighting geared toward or otherwise appropriate for such specific activity. In some embodiments, physical activity is divided into general activity and specific activity; emotional activity may be subdivided in a similar fashion. Other factors may be considered as well, including the layout of the area being illuminated and/or any user provided lighting preferences. In some embodiments, user preferences can be used to override general physical and/or emotional activity, and specific physical and/or emotional activity can override the user preferences. Numerous variations and lighting systems will be apparent in light of this disclosure

METHOD OF LIGHTING INTENSITY AUTOMATIC ADJUSTMENT AND DEVICE WITH LIGHTING INTENSITY AUTOMATIC ADJUSTMENT - Method of lighting intensity automatic adjustment and corresponding device, in which the light emitted by a light unit is adjusted according to the input signal from a passive infrared motion sensor and/or a dusk sensor. In one embodiment, starting from a stand-by condition in which the lamp unit is switched-off, the light from the lamp unit is smoothly brightened up to 100% of its maximum power in case of detection of a motion from the motion detector and in case that also a dusk condition is detected by the dusk sensor.

LIght detecting apparatus and output light intensity controller - A light detecting apparatus receives input light branched and output by a branching device, to calculate transmittance and reflectivity from the input light, acquires a wavelength corresponding to the calculated transmittance and reflectivity to calculate a gain value corresponding to input light intensity, acquires a driving current value corresponding to a calculated gain value and an acquired wavelength, and outputs an acquired driving current value.

12-31-2009

20130088156

CONTROLLING BRIGHTNESS OF LAMP IN DISPLAY DEVICE - A display device includes a lamp unit, a dimming signal controller, and an inverter device. The dimming signal controller receives a lamp brightness signal and an external environment illumination signal, selects the lamp brightness signal or a signal based on the received external environment illumination signal, and outputs the selected signal as a dimming signal. The inverter device may operate to control brightness of the lamp unit based on the dimming signal.

Light Emitting Diode Replacement Lamp - The invention is a replacement for a conventional incandescent or halogen light bulb. Besides providing regular illumination, it has advantages over a conventional bulb while maintaining the bulb's decorative function, such as visual effects associated with the bulb's envelope or shade. The invention comprises a connector equivalent to a standard light bulb base, at least one light emitting diode (LED), and a driving circuit hosted on a module such as a printed circuit board and adapting the supply voltage to the requirements of the LED. Compensation for the effects of temperature may be included. The invention may also include other circuitry to support various enhanced features such as novel decorative features or control over the brightness, color, or other characteristics—all potentially varying over time or being controlled remotely.

12-17-2009

20130015771

LASER POINTER WITH FUNCTION OF AUTOMATICALLY ADJUSTING LIGHT INTENSITYAANM Chen; Yi-GuangAACI TaipeiAACO TWAAGP Chen; Yi-Guang Taipei TW - A laser pointer with a function of automatically adjusting light intensity is provided. The laser pointer includes a laser light-emitting unit, a microcontroller and a light sensing circuit. The laser light-emitting unit is used for emitting laser light. The microcontroller is electrically connected with the laser light-emitting unit. The light sensing circuit is electrically connected with the microcontroller, and includes an optical sensor for sensing an ambient luminance. A terminal voltage of the optical sensor of the light sensing circuit is detected by the microcontroller. If the terminal voltage is lower than a threshold value, the microcontroller provides a first driving voltage to the laser light-emitting unit. If the terminal voltage is higher than the threshold value, the microcontroller provides a second driving voltage to the laser light-emitting unit.

01-17-2013

20140167624

LED TABLE LAMP - An exemplary LED table lamp includes a hollow lamp housing, a lamp base supporting the lamp housing, an LED module received in the lamp housing for emitting light, and a controlling module electrically connecting to the LED module for automatically adjusting a light intensity of the LED table lamp. The controlling module includes a sensor configured for sensing the light intensity of a working surface of the LED table lamp, and obtaining data corresponding to the light intensity of the working surface of the LED table lamp, a controller comparing the data obtained by the sensor with predetermined data and giving an adjusting order, and an adjusting member adjusting current supplied to the LED module according to the adjusting order from the controller.

METHOD AND SYSTEM FOR ADJUSTING LIGHT OUTPUT FROM A LIGHT SOURCE - A system having a light guide adapted to collect light from a light source, a light detector attached to the light guide, a controller electrically connected to an output of the light detector, and a driver for driving the light source detachably connected to an output of the controller. The driver includes a memory that stores a calibration value for the light source.

05-03-2012

20140015422

PHOTOSWITCH - A photoswitch includes a DC power supply, a luminance controlling circuit and a lightening apparatus. The luminance controlling circuit includes a relay RL

01-16-2014

20140015421

LED MODULE AND ILLUMINATION DEVICE HAVING A SENSOR SUITABLE FOR DOWNSIZING - An LED module includes a light-emitting unit composed of a plurality of LEDs connected in series to one another, a sensor unit, a power interrupt circuit inserted into a power supply path through which the light-emitting unit is supplied with power from an external power source, and a control circuit that controls the power interrupt circuit according to output of the sensor unit. The LED module further includes a secondary battery and a voltage supply circuit. The voltage supply circuit supplies the control circuit with voltage equivalent to voltage drop between the ends of a group of LEDs included in the plurality of LEDs that constitute the light-emitting unit while the external power source is supplying power to the light-emitting unit, and supplies the control circuit with voltage output from the secondary battery while power interrupt circuit is interrupting the power from the external power source to the light-emitting unit.

01-16-2014

20150130357

TURN-ON PROCEDURE FOR A LOAD CONTROL SYSTEM - A load regulation device may be adapted to control an electrical load. The load regulation device may be in a low power state, a ready state, and/or an on state. The low power state may be characterized by the electrical load being unenergized. The ready state may be characterized by a load control device and/or the load regulation device using more power than the low power state and the electrical load being unenergized. The on state may be characterized by the electrical load being energized. The load regulation device may receive an indication of a user's presence when the load regulation device is in the low power state. The load regulation device may change from the low power state to the ready state in response to receiving the indication. The load regulation device may wait in the ready state for a change state instruction.

05-14-2015

20130154486

SELECTIVE LIGHT SENSOR AND DAYLIGHT MANAGEMENT - A system and method for daylight harvesting and/or light management is provided in which a signal from a light sensor is filtered in order to determine the amount of light received from a light fixture in a lighting system and/or from an external light source, such as sunlight even if light is received from multiple light sources. By filtering the signals from the light sensor, an amount of light received from each light source may be determined, and correspondingly controlled to reach a target light level and/or a target balance of light from the multiple light sources.

06-20-2013

20130020949

LIGHTING CONTROL - An apparatus and method of controlling a light are disclosed. One light apparatus includes a light and a controller. The controller is operative to detect a light adjusting trigger event, select a random delay time, and adjust the light, wherein the light adjustment occurs the random delay time after detecting the light adjusting trigger event.

01-24-2013

20100283394

Light Guide for Ambient Light Sensor in a Portable Electronic Device - Disclosed are various embodiments of a light guide and corresponding ambient light sensor, computing device and backlit display for use in a portable electronic device. The various embodiments of the light guide are configured to permit ambient light to be collected efficiently and accurately over wide angles of incidence, even under low-ambient-light conditions. The efficient and accurate collection of ambient light by the various embodiments of the light guide disclosed herein may be employed to more accurately control the amount and degree of backlighting provided to a backlit display, which in turn can be used to conserve valuable battery power in a portable electronic device.

11-11-2010

20140346958

Load Driving Device, and Lighting Apparatus and Liquid Crystal Display Device Using the Same - A load driving device disclosed in the specification includes a power supply circuit for supplying to a load an output voltage converted from an input voltage, a detection voltage generation circuit for generating a detection voltage which varies depending on a magnitude of a voltage drop which across the load, and a control circuit for controlling the power supply circuit so that it performs output feedback control of the output voltage, on the basis of the detection voltage.

11-27-2014

20120139427

ENERGY SAVING LED LAMP - An energy saving LED lamp includes an illuminating device, a mode switching device, a motion detecting device and a controlling unit. The illuminating device is for emitting light. The mode switching device is for switching the illuminating device to work between an illuminating mode and a power saving mode. The motion detecting device is for detecting surrounding human motions and generating a first signal in condition that there is no human motion detected around the LED lamp within a predetermined period of time. The controlling unit is for receiving the first signal generated by the motion detecting device and automatically adjusting brightness of light generated by the illuminating device when having received the first signal, when the mode switching device is at the energy saving mode.

06-07-2012

20150296594

LEARNING CAPABLE LIGHTING EQUIPMENT - A lighting device or system is configured to control of one or more parameters of light output, such as ON/OFF status, intensity when ON, color characteristics and position or orientation of light output (e.g. via a motorized luminaire control). The device or system may have other output capability, e.g. display projection or audio. Sensors or other input devices are responsive to the user. Responsive to user input, sensed activity, and/or acquired information, the device or system, controls a light source in accordance with a lighting control function. Operation of the light source and the lighting control function may be modified based on learning by the device or system.

10-15-2015

20130127347

Sensing Device for LED Lighting Equipment - A sensing device, for controlling an LED lighting equipment, and more especially for electrical connection with at least one LED lighting equipment that can be driven by a DC power supply, is disclosed. The sensing device, which can be supplied with an external DC power source, comprises a control module, a signal adjusting unit, and an object detecting unit. The control module can send a control signal train of PWM or PFM to the signal adjusting unit, which will in turn send an amplified signal train of PWM or PFM to the LED lighting equipment, so as to control the illuminating state of the equipment. Thus, the problems of the conventional light modulators, resulting from the use of an AC power supply, can be alleviated. Also, the associated cost for the equipment can be reduced.

LIGHTING APPARATUS - The present design relates to a lighting apparatus which ensures consistent illumination of constant brightness during darkness or in unlit areas. The lighting apparatus comprises: a lamp unit including a plurality of main lamps and a plurality of auxiliary lamps; a detection sensor unit composed of a sensor for detecting a motion of an object; and a controller for controlling operations of the lamp unit and the sensor unit, wherein the auxiliary lamp is adapted to stay turned on at all times, and the main lamp, which operates independently of the auxiliary lamp, is adapted to be turned on if the detection sensor detects a signal, and the controller is adapted to control ON/OFF of the lamp unit according to a signal detected by the detection sensor and to adjust brightness of the entire lamp unit. While the auxiliary lamps stay turned on all the time, the plurality of main lamps are turned on only if the detection sensor detects a signal and are turned off sequentially if a signal for an object in motion is no longer detected. Accordingly, a lighting configuration of constant brightness is consistently provided during darkness or in unlighted areas. This configuration prevents accidents and alleviates feelings of insecurity for persons moving about in a building.

02-02-2012

20150084525

ADJUSTABLE CONTROL FOR BI-LEVEL LUMINAIRE DRIVER - An adjustable bi-level lighting control is for use in connection with LED luminaires having an LED, a current control circuit, a driver circuit and an AC source. The LED luminaire is directed to illuminate an area having intermittent occupancy. The adjustable bi-level lighting control comprises a dimmer supplying a first control signal to the current control circuit, to control current flow to the LED. An occupancy sensor, responsive to an occupant entering the area, supplies a second electrical control signal to the dimmer. An adjustable control connected to the dimmer allows for selective adjustment of the first electrical control signal. Low and high level potentiometers selectively adjust the first electrical control signal to low and high levels, thereby selectively adjusting the LED to low and high levels of intensity, respectively.

03-26-2015

20120019152

DISPLAY BRIGHTNESS CONTROL BASED ON AMBIENT LIGHT ANGLES - Methods and devices are provided for controlling the brightness of a display for an electronic device based on ambient light conditions. In one embodiment, an electronic device may employ one or more brightness adjustment profiles for changing the brightness of a display based on ambient light levels and/or the angle of incidence of one or more ambient light sources. In certain embodiments, one or more ambient light sensors may be designed to perceive the ambient light level differently based on the angle of incidence of a light source. The perceived ambient light level may then be used to adjust the display brightness based on the one or more brightness adjustment profiles. In other embodiments, one or more ambient light sensors may be designed to detect the angle of incidence of an ambient light source. In these embodiments, the detected angle and the ambient light level may be used to adjust the display brightness.

01-26-2012

20130162148

LAMP CONTROLLER WITH EXTENDED LIFE - A lamp controller has an LED lamp. The lamp is disposed with a light source and two same drive circuits, one of the drive circuits is work drive circuit, the other one is the backup drive circuit, the two drive circuits output are parallel to each other and connected to the light source; the controller includes an AC/DC conversion circuit, microcontroller, switch circuit and drive state detection circuit, the AC/DC conversion circuit is converted the mains supply to low-voltage direction current and supplying power to the microcontroller and the switch circuit, the drive state detect circuit gets the work state information of the work state drive circuit and submits the information to the microcontroller, the microcontroller controls the switch circuit to alternatively connect the input of the work drive circuit or the backup drive circuit to the mains supply according to the work drive circuit work state information.

06-27-2013

20150084524

LIGHTING SYSTEM TO CONTROL THE CIRCADIAN RHYTHM OF AGRICULTURAL PRODUCTS AND ASSOCIATED METHODS - A lighting system comprising a light source, a controller operably coupled to the light source, and a timekeeping device operably coupled to the controller. The controller is configured to receive a selected action time associated with an agricultural product. The agricultural product includes an associated circadian rhythm defining an optimal action time range. The controller is configured to determine a lighting schedule responsive to the selected action time, the optimal action time range, and a time of day indicated by the timekeeping device, the lighting schedule being configured to impose a circadian rhythm on the agricultural product to shift the optimal action time range such that the selected action time coincides with the optimal action time range. The controller is configured to operate the light source according to the lighting schedule.

03-26-2015

20160057820

LIGHT-EMITTING DEVICE - A light-emitting device includes an autotransformer, a circuit module and a light-emitting module. The autotransformer includes a first positive conductive wire for receiving a first input voltage within a first predetermined voltage range, a second positive conductive wire for receiving a second input voltage within a second predetermined voltage range, and a common negative conductive wire electrically mated to the first positive conductive wire and the second positive conductive wire. The first predetermined voltage range is larger than the second predetermined voltage range. The circuit module includes a driver electrically connected to the autotransformer, and a predetermined operating voltage value for driving the driver is substantially within the second predetermined voltage range. The light-emitting module is electrically connected to the driver. Therefore, one of both the first and the second positive conductive wires along with the common negative conductive wire are electrically connected to an AC power source.

02-25-2016

20140239821

OCCUPANCY SENSOR WITH MODULAR DISCONNECT - A system has a lighting fixture has a first connector electrically coupled to a power supply, the first connector being separately electrically coupled to a load, an occupancy sensor having a second connector adapted and configured to engage the first connector, the occupancy sensor being capable of detecting a presence of a person within a monitored space, the first and second connectors forming a disconnect for the lighting fixture, and a switch located in the occupancy sensor arranged to electrically couple the power supply and the load when the first connector is coupled to the second connector and when the occupancy sensor detected a person's presence within the monitored space.

08-28-2014

20120074851

Method and System for Display Calibration with Feedback Determined by a Camera Device - In a class of embodiments, a method and system for calibrating a display using feedback indicative of measurements of light, emitted from the display (typically during display of a test pattern), by a camera device whose camera has a sensitivity function that is unknown a priori but which is operable to measure light emitted by a display in a manner emulating at least one measurement by a reference camera having a known sensitivity function. Typically, the camera device is a handheld camera device including an inexpensive, uncalibrated camera. In another class of embodiments, a system including a display (to be recalibrated), a video preprocessor coupled to the display, and a feedback subsystem including a camera device operable to measure light emitted by the display. The feedback subsystem is coupled and configured to generate preprocessor control parameters in response to measurement data (indicative of measurements by the camera device) and to assert the preprocessor control parameters as calibration feedback to the preprocessor. The preprocessor is operable to calibrate (e.g., recalibrate) the display in response to the control parameters by filtering input image data (e.g., input video data) to be displayed, for example to automatically and dynamically correct for variations in calibration of the display.

03-29-2012

20120074852

WAKE-UP OF LIGHT SENSOR IN A LIGHTING SYSTEM - A wireless light sensor, being part of a lighting system, has a sensor element generating a light measuring signal, a microcontroller coupled to the sensor element, and a radio communication device coupled to the microcontroller. The microcontroller has an active mode and a sleeping mode. The light sensor further has a wake-up circuit which determines a rate of change of the light measuring signal, when the microcontroller is in the sleeping mode. The wake-up circuit brings the microcontroller from the sleeping mode into the active mode, when the rate of change of the light measuring signal exceeds a predetermined threshold.

03-29-2012

20120086345

SOLID STATE LIGHT SYSTEM WITH BROADBAND OPTICAL COMMUNICATION CAPABILITY - Systems and methods are disclosed for use in conjunction with a standardized electrical connector of a conventional light bulb or tube with one or more light emitting diodes (LEDs) electrically coupled to at least one electrical connector compatible with a conventional light connector, wherein the LEDs include at least one multiband-type ultra-wideband (UWB) transceiver having one or more optical channels defined using one or more OFDM bands; and a controller coupled to the LEDs, the controller adjusting LED light output and communicating with the optical network using the optical transmitter and receiver. In other embodiments, the LEDs include at least one optical transmitter and receiver optically coupled to an optical network using at least one LED with a first mode to generate light and a second mode to receive optical transmissions using ambient light.

04-12-2012

20120169241

ELECTRONIC DEVICE CAPABLE OF DETECTING ENVIRONMENT BRIGHTNESS AND METHOD THEREOF - An electronic device capable of detecting environment brightness includes a camera and a processor. The camera includes a photo sensor. The photo sensor includes a number of photosensitive elements. The processor is to periodically turn on some or all of the photosensitive elements to direct the camera to capture an image, obtain R value, G value, and B value of each pixel of the captured image, and determine environment brightness according to the determined R value, G value, and B value of each pixel of the captured image. A related method is also provided.

07-05-2012

20120091901

ILLUMINATION DEVICE - An illumination device, includes: a photovoltaic power generation unit; a battery unit for storing the electric power generated in the photovoltaic power generation unit; a light source to be turned on using the battery unit as a power source; a human detecting sensor; a human determining unit for determining presence/absence of the human based on a detection result of the human detecting sensor; a season determining unit; and a lighting control unit for, if the human determining unit determines that the human exists, turning on the light source at a specified dimming rate for a specified on-duration. The lighting control unit is configured to, based on a season determination result of the season determining unit, make power consumption of the light source in a season having a reduced daytime period smaller than power consumption of the light source in a season having an increased daytime period.

04-19-2012

20140028200

LIGHTING AND INTEGRATED FIXTURE CONTROL - Radio frequency-enabled lighting-fixture management systems, apparatus, and methods are described. One implementation includes a wireless communication component and a controller that is integrated into the radio frequency-enabled lighting-fixture management unit. The controller is configured to obtain operational values of a luminaire driver or a luminaire. The controller is further configured to provide the obtained operational values to the wireless communication component for transmission.

Illuminated Pet Bed Device - Disclosed is an illuminated pet bed having a pressure activated night light that allows a pet to locate their bed in low light and deactivate the light once the pet is positioned thereon for sleeping. The device includes a power source connection, a control interface, and a light source within the bed. At least one switch energizes or deactivates the light source based on input from the pet, owner, or the ambient environment. In a preferred embodiment, there is provided a first pressure switch, a second light sensor switch, a third timer switch, and manual override (“ON” and “OFF”) switches. The pressure switch is a normally closed switch that breaks continuity between the power and the light source when the pet is positioned on the bed, while the other switches are related to manual control or activation of the light during certain periods.

07-11-2013

20110309756

Road Lamp Dimming Control Device - A road lamp dimming control device comprises a signal processor, a power supplier, a driver and a light emitting module. The single processor is used for receiving an inputted electric current and a control signal. The control signal is decoded into a dimming control signal that then is transmitted to the power supplier. The power supplier converts the inputted electric current into constant current based upon the dimming control signal. The driver receives the constant current to drive the light emitting module to allow the light emitting module having different brightness based upon the control signal, thereby performing multi-stage variation.

12-22-2011

20150137687

LED POWER SUPPLY DEVICE - An LED power supply device disclosed in the present specification includes a DC dimmer circuit that performs dimming control of an LED such that the higher a reference voltage variably controlled according to a dimmer signal is, the smaller a current flowing in the LED is. This configuration makes it possible to achieve fine dimming control.

Internally Illuminated Pavement Marker - The present disclosure generally relates to internally illuminated pavement markers that may be attached to or installed into a roadway surface to enhance traffic delineation, such as, for example, traffic lane skip lines and edge lines and include at least some of the following elements: a light source capable of emitting light; a power source; a solar energy system capable of collecting solar energy and converting the solar energy into electrical energy, the solar energy system conductively coupled to the rechargeable electrical power source such that the solar energy collected and converted into electrical energy is capable of recharging the power source; an optical light guide capable of propagating the light emitted by the light source within the pavement marker by means of total internal reflection; and a housing including at least one of the light source, the power source, the solar energy system, and/or the optical light guide.

10-17-2013

20130271013

METHOD AND APPARATUS FOR USING PORTABLE TERMINAL - A method for using a portable terminal in a dark environment by checking a battery level and an ambient illuminance; and driving a light-emitting unit corresponding to a preset terminal according to predetermined criteria based on the check outcome.

10-17-2013

20130271012

ILLUMINATION SYSTEM - An illumination system includes a light module, a power module, a driver module, a light sensor module, and a control module. The power module is coupled to an input power source. The power module converts the input power source and outputs a direct voltage. The driver module, coupled between the light module and the power module, converts the direct voltage into a driving voltage and then outputs a driving current to drive the light module. The light sensor module senses an environment brightness and outputs a brightness signal. The control module receives the brightness signal and outputs a light modulation signal to the driver module, wherein the driver module controls the activation time of the light module according to the light modulation signal.

10-17-2013

20140375222

LEARNING CAPABLE CONTROL OF CHAOTIC LIGHTING - At least one controllable source of visible light is configured to illuminate a space to be utilized by one or more occupants. A controller causes the source(s) to emit light in a manner that varies at least one characteristic of visible light emitted into the space over a period of time at least in part in accordance with a chaotic function. Responsive to user input, sensed activity, and/or acquired information, the source(s) are controlled by the controller in accordance with a lighting control function which may be modified based on learning by a device or system including the controller.

ILLUMINATION CONTROL SYSTEM - An illumination control system includes a signal detection unit for detecting a signal changed depending on an eye state of a person, an opening/closing determination unit for determining an opening/closing state of an eye of the person based on the detected signal, and a sight line detection unit for detecting a person's sight line direction with respect to an illumination device based on the detected signal. The illumination control system further includes a control unit for controlling the illumination device to reduce an illuminance when the opening/closing determination unit determines that the eye of the person is in a closed eye state, and to change an illuminance and a light color based on the sight line direction detected by the sight line detection unit when the opening/closing determination unit determines that the eye of the person is in an open eye state.

04-09-2015

20110316429

TRIAC-based light dimmer - A lamp system includes a dimmer comprising a temperature sensor, a TRIAC, and a rectifier; a lamp electrically connected to the TRIAC and mounted on the dimmer; and a controller electrically connected to the rectifier and comprising a processor electrically connected to a gate electrode of the TRIAC, a presence sensor for sensing presence of an object, a photosensor, and a time delay button. A first signal is generated by the temperature sensor when ambient temperature is over a predetermined value, the first signal is sent to the processor to generate a first trigger pulse, and the first trigger pulse is sent to the gate electrode of the TRIAC so that current flowing through the TRIAC to the lamp can be decreased.

12-29-2011

20150373808

LIGHT FIXTURE CAPABLE OF AUTOMATICALLY CONTROLLING ILLUMINANCE IN AN ACTIVE SMART MANNER - A light fixture includes a light emitting module for radiating and illuminating a preset illumination area with a fixed illuminance; a light sensor unit mounted on and in electrical communication with the light emitting module, including a light guiding pipe having a first end for guiding reflection light beam from the preset illumination area into the guiding pipe and a light sensor component mounted on a second end of the guiding pipe for measuring an illuminance of the reflection light beam guided into the guiding pipe in order to modulate the light emitting module based on the measured illuminance in such a manner that the light emitting module is capable of actively automatically controlling and maintaining the preset illumination area with the fixed illuminance.

12-24-2015

20120153843

DIMMER SYSTEM AND METHOD - An exemplary embodiment of the invention, a dimmer system and a dimming method employed thereby, is described. The dimmer system communicates AC power having alternating AC current half-cycles to a gas discharge lamp for energizing the gas discharge lamp. The AC current half-cycles being communicated to the gas discharge lamp is switchable between a first waveform and a second waveform of different amplitudes. By varying the point whereat the switching occurs, illumination intensity of the gas discharge lamp is varied to thereby effect stepless dimming of the gas discharge lamp.

06-21-2012

20110279042

LED LIGHTING SYSTEM WITH AUTO AND MANUAL DIMMING FUNCTIONS - An LED lighting system with auto and manual dimming functions includes an infrared remote control apparatus, a light sensing unit, an infrared receiving unit, a dimming controller, a switch driving circuit, and an LED lamp. The LED lighting system is integrated with the light sensing unit and the infrared receiving unit to provide auto and manual dimming functions to the LED lamp through the infrared remote control apparatus, thus providing optimum illuminating brightness of the LED lamp.

Light control system added security function based on CPTED and method thereof - The present invention relates to a lighting control system with a security function based on a CPTED, which is capable of acquiring detailed video information on a desired object in interlocking with a video device such as a DVR based on sensing information collected through sensors included a local lighting device and controlling a lighting adjacent to the object to strengthen a security function. Since lightings and cameras can be simultaneously controlled to direct a suspicious object in response to motion of the suspicious object without any separate video analysis module, the object's crime intention can be prevented and the object's video can be acquired without any shadow zone or deteriorated video quality, which can result in increased security in interlocking of the security function including CPTED-based crime prevention with the lighting control.

05-28-2015

20150382435

Remotely Programming a Photocontrol Device - Disclosed are various methods for lighting control of a light fixture by a remote device. The remote device receives, via a wireless network interface, an identifier from a photocontrol device that manages light output of the light fixture. The remote device transmits a request to establish a point-to-point communication session directly with the photocontrol device using the wireless network interface. Upon receiving an acknowledgement from the photocontrol device confirming establishment of the communication session, the remote device uses the established communication session for receiving a configuration for the photocontrol device. In response to input received, via a user interface of the remote device, to adjust a dimming schedule for the photocontrol device, the remote device instructs the photocontrol device to modify its configuration based upon the received input.

12-31-2015

20150319828

LIGHT EMITTING DIODE APPARATUS, SYSTEM, AND METHOD - This patent application discloses a light emitting diode (LED) bulb apparatus, system and method. According to an exemplary embodiment, the LED system may include where the light emitting diode (LED) system may include: an LED lighting source device, which may include a plurality of LEDs; a controller coupled to said LED lighting source device configured to control said plurality of LEDs; and a wireless transceiver coupled to said controller and configured to wirelessly couple to a remote control device.

11-05-2015

20120280626

METHOD AND SYSTEM FOR ADJUSTING BRIGHTNESS - The present disclosure is directed to the method and system which use an image caught by a photographic device for calculating a brightness of a space and acquiring a state of an object, and adjust the illuminant device and/or the shading device for the space to make the brightness of the space achieve the proper level.

11-08-2012

20160007431

SWITCH AND METHOD OF OPERATION - A control system including: a base including a central axis; a knob rotatably connected to the base, the knob rotatable about the central axis; a plurality of individually indexed light emitting elements distributed along the base perimeter and arranged to direct light radially outward of the central axis; a diffuser arranged radially outward of the light emitting elements; a wireless communication module enclosed between the knob and base; and a processor enclosed between the knob and base, the processor connected to the wireless communication mechanism and plurality of light emitting elements, the processor configured to individually control each light emitting element based on a control signal received from the wireless communication mechanism.

01-07-2016

20140062312

LUMINAIRE WITH ATMOSPHERIC ELECTRICAL ACTIVITY DETECTION AND VISUAL ALERT CAPABILITIES - An illumination system can provide at least a first state and a second state of a luminaire equipped with at least one lighting subsystem. In the first state, the luminous intensity of the lighting subsystem is controlled based on the occurrence of a detected solar event or the occurrence of an expected solar event. In the second state, the luminous intensity of the lighting subsystem forms a visually distinct pattern based on the detection of atmospheric electrical activity exceeding a defined threshold by an electrical activity sensor disposed within the luminaire. The visually distinctive luminous output can alert persons within line of sight of the luminaire of the proximity of threatening atmospheric electrical activity.

Light Emitting Bio-mimicry Method - A system and method are provided for mimicking a bioluminescent signal from an animal or an insect, such as a firefly. A first version includes a controller, an electrical energy battery, a solar energy collector and a light emitting device. The solar energy collector receives sunlight and converts the sunlight to electrical energy that is stored in the battery. The electrical energy battery provides electrical energy to the light emitting device under management by the controller, and may comprise two or more battery cells or circuits. A time sequence for energizing the light emitting device may be applied to cause the light emitting device to mimic a bioluminescent lighting pattern generally exhibited by a selected species of insect or animal. A light emitting diode may be used with a voltage source and a voltmeter to detect the approximate intensity of light of an ambient environment surrounding the device.

05-22-2014

20140103815

Lamp with energy saving control - A lamp having energy saving controls, which include: a lighting unit, a control device coupled to this lighting unit, and signals from this control device are used to control the brightness levels of this lighting unit; a sensing device coupled to this control device, and when this sensing device senses an object or the object moves, it sends a signal to the control device, which adjusts the strength of the power supply accordingly; and a remote signal receiving device coupled to this control device, and when this remote signal receiving device receives a signal it generates a remote signal according to the signal received, and sends this signal to the control device, which adjusts the strength of the power supply accordingly.

04-17-2014

20110199006

IMAGE DISPLAY DEVICE, BRIGHTNESS CONTROL METHOD AND BRIGHTNESS CONTROL PROGRAM - An image display device includes a display unit that is installed inside a finder window provided in a housing and displays images, an obtaining unit that obtains brightness of a space inside the finder window, and a control unit that when the brightness obtained by the obtaining unit is a first brightness, sets the brightness of the display unit to a second brightness, and when the brightness obtained by the obtaining unit is a third brightness brighter than the first brightness, sets the brightness of the display unit to a fourth brightness brighter than the second brightness.

08-18-2011

20140103816

Method and Structure for Increasing Receiving Angle of Optical Sensor and Handheld Terminal - A method and a structure are provided to increase a receiving angle of an optical sensor. The structure includes touchscreen glass, an optical sensor, and a main board. An ambient light hole is provided on the touchscreen glass. The optical sensor is disposed between the touchscreen glass and the main board. A light uniformizing film is disposed between the touchscreen glass and the optical sensor, is in contact with the touchscreen glass, and completely covers the ambient light hole. A handheld terminal includes the foregoing structure.

04-17-2014

20140117859

CONTROLLABLE LIGHT SOURCE - A controllable light source is provided that includes a load control circuit and an integrated lighting load. The controllable light source is configured to receive wirelessly communicated commands transmitted by a remote control device associated with the controllable light source, such as a rotary remote control device. The controllable light source may include an actuator for associating the controllable light source with the remote control device, such that the load control circuit is operable to adjust the intensity of the lighting load in response to wireless signals received from the remote control device. The controllable light source may support the actuator such that the actuator may be actuated when the controllable light source is installed in a fixture.

05-01-2014

20140167625

ELECTRONIC CENSER - An electronic censer includes a censer body, an incense branch mounted on the censer body, a sensor mounted on the censer body to sense a luminance of the environment, and a controller connecting the light source and the sensor. The incense branch includes a light guiding tube, a light source and a head member mounted on opposite ends of the light guiding tube, and light emitted from the light source guided by the light guiding tube and traveling through the head member to illuminate. When the light source is lighted, the sensor senses the luminance of the environment and a corresponding diction signal occurs in the sensor. The diction signal is transferred to the controller, and then the controller adjusts the luminance of the light source according to the diction signal.

06-19-2014

20140167622

AUTO COMMISSIONING LIGHTING FIXTURE - The present disclosure relates to lighting fixtures for use in a lighting network where the lighting fixtures and other elements are able to communicate with each other via wired or wireless communication techniques. When the lighting network is being formed or modified, the lighting fixtures may be able to communicate with each other and automatically determine a single lighting fixture to act as a coordinator during a commissioning process. The lighting fixtures can exchange their communication addresses, such as MAC addresses, wherein the lighting fixture with the lowest (or highest) normal communication address becomes the coordinator. The coordinator may also be configured to assign short addresses to use for communications once the lighting network is formed instead of the longer MAC, or like, addresses. The short addresses can reduce routing overhead, and thus make the routing of messages including control information, sensor data, and the like, more efficient.

06-19-2014

20140077708

ELECTRONIC DEVICE AND CONTROL METHOD THEREOF - An electronic device including a solar cell, an energy storage unit, a control unit, and a controlled unit is provided. The solar cell converts light energy to electric energy. The energy storage unit performs charging by the electric energy. The control unit determines the intensity of the light energy according to an energy value of the electric energy and generates a correction signal accordingly, wherein the energy value is a current value or a voltage value. The controlled unit controls a characteristic parameter according to the correction signal.

03-20-2014

20140021869

Computer Light Adjustment - A computing device is disclosed. The computing device includes a light source configured to output light. The computing device also includes a light sensor configured to measure the level of light surrounding the computing device. The computing device further includes a control mechanism operatively coupled to the light source and light sensor and configured to adjust the level of output light based on the measured level of light surrounding the computing device.

01-23-2014

20140021868

SYSTEM AND DISPLAY FOR CONTROLLING DISPLAY - A system and method that adjusts a screen brightness of a display, considering an ambient illumination state, are provided. The method includes receiving a signal, corresponding to an event related to an illumination state alteration, from a sensor, confirming the event, and adjusting, if the event is confirmed, a screen brightness of a display unit in accordance with the event.

01-23-2014

20140049167

INTEGRATED LIGHTING SYSTEM AND METHOD - System and method include luminaires, control switches, occupancy detectors, and photocells connected to central control module for setting up, testing, commissioning and maintaining the system. Memory card interface and associated memory card provided for loading, saving and/or transferring configuration, update firmware, and log system operation data, which can be automatically recognized to perform appropriate actions. System and method provide switching between different mutually exclusive lighting modes where lighting of each mode is sequenced such that second lighting mode is initiated before first mode is terminated, resulting in continuity of lighting in controlled area. Other features include daylight harvesting control with multiple zone dimming and switching, programmable attack and decay dimming rates, ability to return system to previous dimming level after lights have been turned off, and ability to start controlled lights at full light level then dim down to previous level to ensure lighting ballasts have sufficient start up voltage.

02-20-2014

20140055043

INTEGRATION OF LED LIGHTING WITH BUILDING CONTROLS - An LED-based light can be installed in a conventional light fixture. The LED-based light can include a sensor operable to output a first signal indicative of whether an area of one or more of the rooms is in an occupied state or a non-occupied state, and the LED-based light can also include an LED controller operable to control at least one LED in the light in response to the first signal. Additionally, the LED-based light can include a transmitter operable to output a second signal indicative of whether the area is in the occupied state or the non-occupied state to a building environment regulator.

02-27-2014

20120286674

LIGHT AMOUNT CONTROL APPARATUS, CONTROL METHOD THEREFOR, AND DISPLAY APPARATUS - A first current amount which has been preset so that the light amount of an LED element reaches a target light amount value at a predetermined reference ambient temperature, and a thermal correction coefficient for correcting the first current amount so that the light amount of the element reaches the target light amount value at an ambient temperature different from the reference ambient temperature are stored. Furthermore, when the light amount of the LED element reaches the target light amount value, an aging correction coefficient for correcting the first current amount to correct aging at the reference ambient temperature is calculated from a second current amount supplied to the LED element and the thermal correction coefficient corresponding to the ambient temperature of the LED element, and is then stored.

11-15-2012

20140167623

COMMISSIONING FOR A LIGHTING NETWORK - The present disclosure relates to lighting fixtures for use in a lighting network where the lighting fixtures and other elements are able to communicate with each other via wired or wireless communication techniques. When the lighting network is being formed or modified, a lighting fixture is selected to act as a coordinator for forming the lighting network. For example, a user may employ a commissioning tool to select a particular lighting fixture as the coordinator. The coordinator will send out one or more ‘join my network’ messages toward the other elements of the lighting network. The elements that receive the ‘join my network’ message may respond in order to make the coordinator aware of their presence and join them to a lighting network.

06-19-2014

20110140613

COMPACT FLUORESCENT LAMPS - An ambient light sensor integrated in a compact fluorescent lamp that, in turn, may include a controller and a radiation source. The ambient light sensor may include a radiation receiver to receive and filter incident radiation to obtain a value of the level of infrared radiation, and an electronic module to determine if the value is above a reference threshold value to enable the controller to switch the state of the radiation source.

06-16-2011

20110241553

SYSTEM, METHOD AND APPARATUS FOR BRIGHTNESS ADJUSTING OF AN ILLUMINATED LOGO - An application for a logo with an adjustable internal lighting includes an illuminated logo, a sensor and a circuit that controls the illuminated logo. The brightness and/or color of the illuminated logo are controlled by the circuit based upon ambient light and optionally, a user preference, operating mode and/or time-of-day. The sensor detects ambient light and signals the circuit to increase or decrease the brightness of the illuminated logo.

10-06-2011

20110156598

Intelligent outdoor sun shading device - An intelligent outdoor sun shading device includes a shading system, an environmental sensor device and a functional controller. The shading system includes a supporting frame, a power source supported at the supporting frame, an awning frame suspendedly and movably supported by the supporting frame, and a sun shelter mounted to the awning frame to define a shading area under the sun shelter. The environmental sensor device is electrically linked to the power source and is installed to the shading system for detecting an environmental change of the shading system in responsive to the shading area thereof. The functional controller is electrically linked to the environmental sensor device and is operatively controlled the awning frame of the shading system, wherein when the functional controller receives a command signal from the environmental sensor device, the awning frame is automatically adjusted to regulate the shading area thereof in responsive to the environmental change of the shading system.

06-30-2011

20110260628

SYSTEM AND METHOD FOR ILLUMINATING A COMPONENT OF AN ELECTRONIC DEVICE - The disclosure describes a system and method for controlling a light for a component of an electronic device. An embodiment uses brightness evaluation zones and progresses through one or more of the zones to determine whether and when to activate the light for given conditions of ambient light. In doing so, the embodiment sets a current brightness evaluation zone for the device and sets an activation status of the light level to an activation value associated with the current brightness evaluation zone. The embodiment compares an ambient light level for the device to the current brightness evaluation zone. Evaluation loops are provided to test and change the current brightness evaluation zone against the detected ambient light. The light may be a backlight.

PULSE-CONTROLLED LIGHT EMITTING DIODE SOURCE - A light-emitting diode array is driven by a digital control. The digital control modulates the pulse width of pulses applied to the light-emitting diode. The intensity of the output is controlled by controlling the width of pulses applied to the light-emitting diode. Since light-emitting diodes have very low inertial energy, this system can be rapidly turned on and turned off. The output is integrated to produce a uniform output.

06-04-2009

20080309243

FLOURESCENT LAMP WITH INTEGRAL PROXIMITY SENSOR FOR BUILDING ENERGY MANAGEMENT - A fluorescent lamp sensor system is provided. The fluorescent lamp sensor system includes a plurality of bulbs and a plurality of electrodes coupled to the bulbs. A balanced differential circuit measures changes in electric fields produced by the bulbs in front of the electrodes. The balanced differential circuit includes a symmetric current source associated with alternating the surface potential of the bulbs. A current mode detection circuit detects the current associated with the capacitive effects of the balanced differential circuit. A synchronous detection circuit isolates the capacitive effects of the symmetrical current source from stray signals that differ in either frequency or phase.

12-18-2008

20090128043

LIGHT SENSING APPARATUS AND DISPLAY DEVICE THEREOF - A light sensing apparatus and a display device thereof are provided. The light sensing apparatus comprises a filtering device and a light sensing device. The filtering device filters off a part of the ambient light and outputs the other part of the ambient light. The light sensing device outputs a sensing signal according to the other part of the ambient light.

Light source system - A light source system capable of controlling a light emission amount of a light source section more accurately while keeping manufacturing costs low is provided. The light source system includes a light source, a light-sensing device detecting light from the light source, a calculation means, and a light source control means. The calculation means calculates a net light amount by subtracting a measurement environment component from a light amount detected by the light-sensing device. The measurement environment component is independent of a lighting state in the light source. The light source control means controls the light source on the basis of the net light amount obtained by the calculation means.

07-02-2009

20090072749

Image Intensifier with Adjustable Figure of Merit - An image intensifier such as a night vision goggle includes a tube module and a power supply module. The image quality may be characterized by a figure known as the “Figure of Merit” (FOM), which is an arithmetic product of screen resolution and signal-to-noise ratio (SNR). Both resolution and SNR are affected by the voltage supplied by the power supply module. By providing a power supply module with an adjustable voltage, the FOM may be varied. The adjustment mechanism may then be rendered tamper resistant, thereby enabling the FOM to be permanently reduced for devices intended for export.

03-19-2009

20080290804

Temperature dependant LED current controller - The present invention provides a controller for regulating current in LEDs in electronic displays. The controller uses temperature sensing diodes to detect changes in the LED ambient temperature. As the LED ambient temperature changes, the forward voltage of the temperature sensing diode decreases. A signal processor adjusts the current passing through the LEDs based on the temperature induced changes in the forward voltage of the temperature sensing diodes. The present invention can reduce costs over the present methods of regulating current in LEDs and may more easily be integrated into a single integrated circuit chip. The temperature sensing may also be implemented outside the integrated circuit chip.

11-27-2008

20090085486

APPARATUS AND METHOD FOR MANAGING THE POWER OF ILLUMINATION DEVICES - An apparatus for managing the power of an illumination device supplied by a power source includes a switch, a switch controller, an imaging unit, and a pattern recognition unit. The switch is configured for electrically connecting or disconnecting the illumination device and the power source. The switch controller is configured for controlling the switch, thereby switching off the illumination device. The imaging unit is configured for capturing an image of an illuminated area illuminated by the illumination device. The pattern recognition unit is configured for detecting whether any person is contained in the captured image, and if not, instructing the switch controller to switch off the illumination device.

04-02-2009

20090108761

TIMING CONTROLLER, LIQUID CRYSTAL DISPLAY COMPRISING THE SAME AND DRIVING METHOD OF LIQUID CRYSTAL DISPLAY - A timing controller, a liquid crystal display (LCD) comprising the same and a driving method of the liquid crystal display, in which the LCD includes an LCD panel, a light source unit divided into n light-emitting blocks providing light to the LCD panel, a side member reflecting the light emitted from the light source unit, a timing controller determining a final brightness of each of the n light-emitting blocks and providing final light data corresponding to the final brightness, the final brightness being determined using reflected brightness based on the light reflected from the side member, and a backlight driver controlling the brightness of each of the n light-emitting blocks in response to the final light data.

Light Output Control Method and Lighting System Using the Same - A light output control method for a lighting system is provided. The lighting system includes a plurality of sensors and a light-emitting unit. The light output control method includes steps of: sensing a motion of an object within the sensing ranges of the sensors at different time spots, thereby generating multiple sensing values; obtaining a sensing sequence data according to the sensing values indicating the motion of the object sensed by the sensors; controlling the light-emitting unit to perform a light output control operation if the sensing sequence data complies with a predetermined condition.

IMAGE DISPLAY DEVICE - An image display apparatus includes a light source device, a light source control unit which controls power supplied to the light source device and an image light emission unit which, utilizing a source light emitted from the light source device, emits an image light. A light quantity measurement unit measures a quantity of the source light. A power/light quantity characteristic derivation unit derives a power/light quantity characteristic. A light quantity adjustment unit, based on the power/light quantity characteristic, adjusts the quantity of the source light or the image light. The light source control unit controls the supplied power to gradually change the light quantity of the source light. The light quantity measurement unit measures the light quantity of the gradually changing source light and acquires light quantity data. The power/light quantity characteristic derivation unit, based on the light quantity data and the supplied power, derives the power/light quantity characteristic.

LIGHT GENERATING DEVICE, DISPLAY APPARATUS HAVING THE SAME AND METHOD OF DRIVING THE SAME - A light generating device includes a brightness detector. The brightness detector extracts a brightness data from an image data. The light generating device compensates the uniformity of a white light whenever the image data that is greater than a reference gray scale is input through the brightness detector. Thus, the light generating device may compensate the uniformity of the white light in real time, so that a display apparatus employing the light generating device may improve a high-quality image.

08-28-2008

20090066258

Streelight monitoring and control - Methods and apparatus associated with monitoring and controlling streetlights include monitoring light levels and voltage levels at corresponding streetlights and controlling the streetlights to set or maintain a particular light output at the respective streetlights or providing power consumption estimates for respective streetlights (streetlight specific metering) based on the voltage levels and light levels. A streetlight controller for a streetlight includes a microcontroller; a first sensor to sense a light level from a lamp within the streetlight; a second sensor operative to sense a voltage level on a power supply for the streetlight; and a switching network coupled with the microcontroller and operative to adjust the light level of the lamp. Methods includes monitoring a light level and voltage level and adjusting a light level, estimating power consumption, or facilitating maintenance in accordance with the light level and voltage level. The methods may be performed all or in part at a streetlight, a local gateway or a central controller and database.

03-12-2009

20090009093

SWITCHABLE INDUCTION LIGHT - A light fitting is provided with a first connector piece arranged to support a light and provide power thereto, an input connected to a power source and arranged to provide power permanently to an output comprising a primary coil, and a transmitter operable to transmit a switch signal. A light is provided comprising a sealed light housing, a light source, a back-up battery, a controller and a second connector piece having a secondary coil and a receiver. The receiver receives the switch signal and the controller controls power delivery to the light source in response to the switch signal received by the receiver thereby to turn the light on and off. The light fitting and the light are arranged to present the primary coil and the secondary coil for inductive coupling therebetween and to present the transmitter and the receiver for wireless communication therebetween.

01-08-2009

Patent applications in class Radiant energy controlled regulation of the current supply for the load device